SlideShare a Scribd company logo
Summarize the key functional components of the Internet mail
architecture.
Explain the basic functionality of SMTP, POP3, and IMAP.
Explain the need for MIME as an enhancement to ordinary e-
mail.
Describe the key elements of MIME.
Understand the functionality of S/MIME and the security threats
it addresses.
Understand the basic mechanisms of STARTTLS and its role in
e-mail security.
Understand the basic mechanisms of DANE and its role in e-
mail security.
Understand the basic mechanisms of SPF and its role in e-mail
security.
Understand the basic mechanisms of DKIM and its role in e-
mail security.
Understand the basic mechanisms of DMARC and its role in e-
mail security.
Summarize the key functional components of the Internet mail a.docx

More Related Content

More from fredr6

Summarize this paragraph in your own word when the american colonis.docx
Summarize this paragraph in your own word when the american colonis.docxSummarize this paragraph in your own word when the american colonis.docx
Summarize this paragraph in your own word when the american colonis.docx
fredr6
 
Summarize the three (3) current competing theories of the origin of .docx
Summarize the three (3) current competing theories of the origin of .docxSummarize the three (3) current competing theories of the origin of .docx
Summarize the three (3) current competing theories of the origin of .docx
fredr6
 
Summarize the process of a program’s development based on the pr.docx
Summarize the process of a program’s development based on the pr.docxSummarize the process of a program’s development based on the pr.docx
Summarize the process of a program’s development based on the pr.docx
fredr6
 
Summarize the key details about your chosen leader.Who i.docx
Summarize the key details about your chosen leader.Who i.docxSummarize the key details about your chosen leader.Who i.docx
Summarize the key details about your chosen leader.Who i.docx
fredr6
 
Summarize the PICO(T) components of the health care challenge presen.docx
Summarize the PICO(T) components of the health care challenge presen.docxSummarize the PICO(T) components of the health care challenge presen.docx
Summarize the PICO(T) components of the health care challenge presen.docx
fredr6
 
Summarize the process of a program’s development based on the prog.docx
Summarize the process of a program’s development based on the prog.docxSummarize the process of a program’s development based on the prog.docx
Summarize the process of a program’s development based on the prog.docx
fredr6
 
Summarize the influences of diversity within a workplace.Your .docx
Summarize the influences of diversity within a workplace.Your .docxSummarize the influences of diversity within a workplace.Your .docx
Summarize the influences of diversity within a workplace.Your .docx
fredr6
 
Summarize the main theories of human deve.docx
Summarize the main theories of human deve.docxSummarize the main theories of human deve.docx
Summarize the main theories of human deve.docx
fredr6
 
summarize the facts about HIV What is HIV, why is HIV a g.docx
summarize the facts about HIV What is HIV, why is HIV a g.docxsummarize the facts about HIV What is HIV, why is HIV a g.docx
summarize the facts about HIV What is HIV, why is HIV a g.docx
fredr6
 
Summarize the following subjects  of Chapter 3Different type.docx
Summarize the following subjects  of Chapter 3Different type.docxSummarize the following subjects  of Chapter 3Different type.docx
Summarize the following subjects  of Chapter 3Different type.docx
fredr6
 
Suhayb majid 17026353land law examQ4) EASMENTSThis is th.docx
Suhayb majid 17026353land law examQ4) EASMENTSThis is th.docxSuhayb majid 17026353land law examQ4) EASMENTSThis is th.docx
Suhayb majid 17026353land law examQ4) EASMENTSThis is th.docx
fredr6
 
Suicide CrisisBy Christina L. LyonsPub. Date July 12.docx
Suicide CrisisBy Christina L. LyonsPub. Date July 12.docxSuicide CrisisBy Christina L. LyonsPub. Date July 12.docx
Suicide CrisisBy Christina L. LyonsPub. Date July 12.docx
fredr6
 
Suicide is the third leading cause of death for adolescents .docx
Suicide is the third leading cause of death for adolescents .docxSuicide is the third leading cause of death for adolescents .docx
Suicide is the third leading cause of death for adolescents .docx
fredr6
 
summarize a statute or regulation of your choice. It has something t.docx
summarize a statute or regulation of your choice. It has something t.docxsummarize a statute or regulation of your choice. It has something t.docx
summarize a statute or regulation of your choice. It has something t.docx
fredr6
 
Summarize a health care problem or issue and describe a personal i.docx
Summarize a health care problem or issue and describe a personal i.docxSummarize a health care problem or issue and describe a personal i.docx
Summarize a health care problem or issue and describe a personal i.docx
fredr6
 
Suggest the major benefits of utilizing a flow chart to define and i.docx
Suggest the major benefits of utilizing a flow chart to define and i.docxSuggest the major benefits of utilizing a flow chart to define and i.docx
Suggest the major benefits of utilizing a flow chart to define and i.docx
fredr6
 
Summarization of eight topics (British History) one page per each to.docx
Summarization of eight topics (British History) one page per each to.docxSummarization of eight topics (British History) one page per each to.docx
Summarization of eight topics (British History) one page per each to.docx
fredr6
 
Summarize the challenges Netflix is facing, as detailed in the.docx
Summarize the challenges Netflix is facing, as detailed in the.docxSummarize the challenges Netflix is facing, as detailed in the.docx
Summarize the challenges Netflix is facing, as detailed in the.docx
fredr6
 
Summarize the 2 topics into 2 slides per each topic.Please have .docx
Summarize the 2 topics into 2 slides per each topic.Please have .docxSummarize the 2 topics into 2 slides per each topic.Please have .docx
Summarize the 2 topics into 2 slides per each topic.Please have .docx
fredr6
 
Successful joint venture of Maruti and Suzuki. The paper should incl.docx
Successful joint venture of Maruti and Suzuki. The paper should incl.docxSuccessful joint venture of Maruti and Suzuki. The paper should incl.docx
Successful joint venture of Maruti and Suzuki. The paper should incl.docx
fredr6
 

More from fredr6 (20)

Summarize this paragraph in your own word when the american colonis.docx
Summarize this paragraph in your own word when the american colonis.docxSummarize this paragraph in your own word when the american colonis.docx
Summarize this paragraph in your own word when the american colonis.docx
 
Summarize the three (3) current competing theories of the origin of .docx
Summarize the three (3) current competing theories of the origin of .docxSummarize the three (3) current competing theories of the origin of .docx
Summarize the three (3) current competing theories of the origin of .docx
 
Summarize the process of a program’s development based on the pr.docx
Summarize the process of a program’s development based on the pr.docxSummarize the process of a program’s development based on the pr.docx
Summarize the process of a program’s development based on the pr.docx
 
Summarize the key details about your chosen leader.Who i.docx
Summarize the key details about your chosen leader.Who i.docxSummarize the key details about your chosen leader.Who i.docx
Summarize the key details about your chosen leader.Who i.docx
 
Summarize the PICO(T) components of the health care challenge presen.docx
Summarize the PICO(T) components of the health care challenge presen.docxSummarize the PICO(T) components of the health care challenge presen.docx
Summarize the PICO(T) components of the health care challenge presen.docx
 
Summarize the process of a program’s development based on the prog.docx
Summarize the process of a program’s development based on the prog.docxSummarize the process of a program’s development based on the prog.docx
Summarize the process of a program’s development based on the prog.docx
 
Summarize the influences of diversity within a workplace.Your .docx
Summarize the influences of diversity within a workplace.Your .docxSummarize the influences of diversity within a workplace.Your .docx
Summarize the influences of diversity within a workplace.Your .docx
 
Summarize the main theories of human deve.docx
Summarize the main theories of human deve.docxSummarize the main theories of human deve.docx
Summarize the main theories of human deve.docx
 
summarize the facts about HIV What is HIV, why is HIV a g.docx
summarize the facts about HIV What is HIV, why is HIV a g.docxsummarize the facts about HIV What is HIV, why is HIV a g.docx
summarize the facts about HIV What is HIV, why is HIV a g.docx
 
Summarize the following subjects  of Chapter 3Different type.docx
Summarize the following subjects  of Chapter 3Different type.docxSummarize the following subjects  of Chapter 3Different type.docx
Summarize the following subjects  of Chapter 3Different type.docx
 
Suhayb majid 17026353land law examQ4) EASMENTSThis is th.docx
Suhayb majid 17026353land law examQ4) EASMENTSThis is th.docxSuhayb majid 17026353land law examQ4) EASMENTSThis is th.docx
Suhayb majid 17026353land law examQ4) EASMENTSThis is th.docx
 
Suicide CrisisBy Christina L. LyonsPub. Date July 12.docx
Suicide CrisisBy Christina L. LyonsPub. Date July 12.docxSuicide CrisisBy Christina L. LyonsPub. Date July 12.docx
Suicide CrisisBy Christina L. LyonsPub. Date July 12.docx
 
Suicide is the third leading cause of death for adolescents .docx
Suicide is the third leading cause of death for adolescents .docxSuicide is the third leading cause of death for adolescents .docx
Suicide is the third leading cause of death for adolescents .docx
 
summarize a statute or regulation of your choice. It has something t.docx
summarize a statute or regulation of your choice. It has something t.docxsummarize a statute or regulation of your choice. It has something t.docx
summarize a statute or regulation of your choice. It has something t.docx
 
Summarize a health care problem or issue and describe a personal i.docx
Summarize a health care problem or issue and describe a personal i.docxSummarize a health care problem or issue and describe a personal i.docx
Summarize a health care problem or issue and describe a personal i.docx
 
Suggest the major benefits of utilizing a flow chart to define and i.docx
Suggest the major benefits of utilizing a flow chart to define and i.docxSuggest the major benefits of utilizing a flow chart to define and i.docx
Suggest the major benefits of utilizing a flow chart to define and i.docx
 
Summarization of eight topics (British History) one page per each to.docx
Summarization of eight topics (British History) one page per each to.docxSummarization of eight topics (British History) one page per each to.docx
Summarization of eight topics (British History) one page per each to.docx
 
Summarize the challenges Netflix is facing, as detailed in the.docx
Summarize the challenges Netflix is facing, as detailed in the.docxSummarize the challenges Netflix is facing, as detailed in the.docx
Summarize the challenges Netflix is facing, as detailed in the.docx
 
Summarize the 2 topics into 2 slides per each topic.Please have .docx
Summarize the 2 topics into 2 slides per each topic.Please have .docxSummarize the 2 topics into 2 slides per each topic.Please have .docx
Summarize the 2 topics into 2 slides per each topic.Please have .docx
 
Successful joint venture of Maruti and Suzuki. The paper should incl.docx
Successful joint venture of Maruti and Suzuki. The paper should incl.docxSuccessful joint venture of Maruti and Suzuki. The paper should incl.docx
Successful joint venture of Maruti and Suzuki. The paper should incl.docx
 

Recently uploaded

NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptxNEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
iammrhaywood
 
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdfANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
Priyankaranawat4
 
Leveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit InnovationLeveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit Innovation
TechSoup
 
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 InventoryHow to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Celine George
 
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPLAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
RAHUL
 
Cognitive Development Adolescence Psychology
Cognitive Development Adolescence PsychologyCognitive Development Adolescence Psychology
Cognitive Development Adolescence Psychology
paigestewart1632
 
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
PECB
 
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Diana Rendina
 
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdfবাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
eBook.com.bd (প্রয়োজনীয় বাংলা বই)
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
National Information Standards Organization (NISO)
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Excellence Foundation for South Sudan
 
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
GeorgeMilliken2
 
How to Make a Field Mandatory in Odoo 17
How to Make a Field Mandatory in Odoo 17How to Make a Field Mandatory in Odoo 17
How to Make a Field Mandatory in Odoo 17
Celine George
 
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptxBeyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
EduSkills OECD
 
Wound healing PPT
Wound healing PPTWound healing PPT
Wound healing PPT
Jyoti Chand
 
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
imrankhan141184
 
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
Academy of Science of South Africa
 
writing about opinions about Australia the movie
writing about opinions about Australia the moviewriting about opinions about Australia the movie
writing about opinions about Australia the movie
Nicholas Montgomery
 
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
Nguyen Thanh Tu Collection
 
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
Nguyen Thanh Tu Collection
 

Recently uploaded (20)

NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptxNEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
 
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdfANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
 
Leveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit InnovationLeveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit Innovation
 
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 InventoryHow to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
 
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPLAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
 
Cognitive Development Adolescence Psychology
Cognitive Development Adolescence PsychologyCognitive Development Adolescence Psychology
Cognitive Development Adolescence Psychology
 
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
 
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
 
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdfবাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
 
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
 
How to Make a Field Mandatory in Odoo 17
How to Make a Field Mandatory in Odoo 17How to Make a Field Mandatory in Odoo 17
How to Make a Field Mandatory in Odoo 17
 
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptxBeyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
 
Wound healing PPT
Wound healing PPTWound healing PPT
Wound healing PPT
 
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
 
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
 
writing about opinions about Australia the movie
writing about opinions about Australia the moviewriting about opinions about Australia the movie
writing about opinions about Australia the movie
 
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
 
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
 

Summarize the key functional components of the Internet mail a.docx

  • 1. Summarize the key functional components of the Internet mail architecture. Explain the basic functionality of SMTP, POP3, and IMAP. Explain the need for MIME as an enhancement to ordinary e- mail. Describe the key elements of MIME. Understand the functionality of S/MIME and the security threats it addresses. Understand the basic mechanisms of STARTTLS and its role in e-mail security. Understand the basic mechanisms of DANE and its role in e- mail security. Understand the basic mechanisms of SPF and its role in e-mail security. Understand the basic mechanisms of DKIM and its role in e- mail security. Understand the basic mechanisms of DMARC and its role in e- mail security.