Tips to prevent your email ip being blacklisted

1. If you answered NO to more than 3 of the above questions you
should think about an immediate and comprehensive review of
your network security. What are the obstacles that have
delayed/prevented you getting theseimplemented?
General queries: info@titanhq.com www.titanhq.com
You can solve almost all of the difficult stuff in the list above -
quickly, easily, and economically with SpamTitan.
Yes
No
3. Have you set up your mail server correctly?
Have you set up your mail server so it is not an open relay?
Network infrastructure/architecture is secure
Firewall
Inbound spam/malware/virus filtering
Web access filtering
End point anti-virus
OS and software security patches up to date
2. Is your network lockeddownto prevent infections?
Have many of the following do you have in place :
Your email server?
Your network internetaccess?
1. Let1s first access the situation.
Do you have 2 (or more) different, separate IP addresses for :
Are you using a reputable DNS service? i.e. not an open or
free DNS (such as Google's 8.8.8.8). Otherwise URIBLs will
not even respond to blacklist queries from your spamfilter
and you risk allowing incoming email with known malware
delivery sites URL links.
Have you worked with your Marketing department to get
them using an autoresponder (such as ConstantContact,
Mailchimp, etc) account for their mass mailing needs -
so that these high volume emails are not sent from your mail
server? Note that simply sending a sudden high volume of
(clean) email from a previously low volume domain will get
your email rejected by ESPs.
Do you have rules limiting the number of sent messages
per day and number of recipients per day?
Have you implemented multiple outbound netblocks to cycle
your outbound IP through, so that if you do get blacklisted,
you can recover in a snap simply by switching to the next
netblock?
Do you have a second Internet connection with different IP
address range, forfailover?
From a preventive standpoint, do you have the mail logs
parsed for unusual spikes and odd patterns?
Do you have automated log analysis?
Have you set up thresholds and alerts?
4. Other Important questions to answer :
Do you have a firewall rule ensuring that the only thing
allowed to send SMTP out of your environment is your mail
server - to block infected workstations from sending email?
Are you logging attempted violations and do you have an
alert set up to notify you so you can immediately investigate
any possible infections?
Do you pass your outbound mail through a spam filter?
Do you have an appropriate SPF record?
Do you have preventative measures in place to prevent your email IP being blacklisted?
Outbound Scanning Tools will prevent Blacklisting Battles!
PREVENTATIVEMEASURES TOPUT IN PLACETO
PREVENT YOUR EMAIL IP BEINGBLACKLISTED

2. Joel Randon
Network Administrator
General queries: info@titanhq.com www.titanhq.com
"
"
How it can beprevented
SpamTitan uses layers of security and network tests (both inbound
and outbound) to protect your network from attack. With a lot of
deployment flexibility you can choose the best fit for your IT
environment.
Reduce your risk of being blacklisted quickly, easily, and
economically with SpamTitan which included crucial features
to prevent blacklisting including outbound spam and malware
filtering, rate limiting and IP rotation - as well as providing separate
IP addresses from the companynetwork.
Trya FREE 30day (no obligation)trial today
How it works:
What if you could have your outbound spam filtering, rate controls,
and outbound IP netblock pools managed in the same box -
so that you can limit by number of emails per unit time (seconds,
minutes, hours), or size per unit time, per mailbox, per domain, for
all traffic through the box, and/or by destination IP, domains, etc.
- with alerts for threshold volations?
And allocate pools of IP address blocks to groups of domains -
so that low volume email is sent via new or rehabilitated email
addresses (e.g. previously blacklisted) to rebuild theirreputation
(with stricter limits on throughput) while "safe" email (e.g. from rep-
utable customers with a history of high-volume/low-spam email) is
delivered via a separate pool of IP addresses.
Per IP pool, you can rotate through IP addresses so that the risk of
blacklisting (even in the event of a spambot on the network - now
throttled by rate control, and raising an early warning alert) will not
send all of (the significantly reduced level of )spam via the same
outbound IP address - so it will be far less likely to breach the
spam threshold that would normally result in IP blacklisting.
And what if all of this was in the same appliance - that could be
downloaded, installed and configured within an hour or two? Let
me introduce you to SpamTitanantispam.
Conclusion
Most people who attempt to track the global level of spam being
sent, estimate anywhere between 70%-95% of all email transmit-
ted daily across the Internet is spam. This is why there exists pub-
lished public blacklists of mail servers that have been relaying
spam. These lists allow other mail servers to first check if they're
receiving an email from a server's IP address that might have
possibly been flagged for sending spam in the past.
It's not uncommon for a server's mail IP address to temporarily
end up on a public blacklist, especially if you're on a shared server.
This can happen for several reasons but can be mitigated against
as outlineabove.
PREVENTATIVEMEASURES TOPUT IN PLACETO
PREVENT YOUR EMAIL IP BEINGBLACKLISTED