M3AAWG just finished, so this is a good time to talk about this, when it
is fresh on everyone's minds.
Some EMS operators are much better than others in PTR naming conventions
in my mind, by making it very clear what they are doing. AS long as
they don't abuse that 'trust' they build up based on the PTR naming
convention, it is really helpful for those who want to make sure that
legitimate email always gets to the in box.
And we are usually very critical of the bad guys, but we should also do
a shout out to those that set good examples for others..
And it is Fraud Awareness month, so making sure your PTR records are
good, prevent them from being confused with 'phishing' domains.
(Comments are welcome, and if you have any other good examples which
exemplify best practices, feel free to share)
Responsys:
Looking at these it is quite easy to see which ones are transactional
mailers.. Kudo's.. And it reflects the organization..
(BTW, High numbers in this list reflect dirty lists, eg a lot of
addresses no longer valid)
12.130.136.129 (M) 8 omp.e.joann.com
12.130.136.187 (M) 1 omp.e.checksunlimited.com
12.130.136.189 (M) 49 omp.email.harley-davidson.com
12.130.136.215 (M) 1 om-cdi.rsys2.com
12.130.136.253 (M) 3 omp.info.key.com
12.130.137.8 (M,RS) 11 omp.email.bdxconnectmailer.com
12.130.137.57 (M) 1 omp.em.seabourn.com
12.130.137.73 (M) 1 omp.em.hollandamerica.com
12.130.137.129 (M) 1 omp.em.princess.com
12.130.137.163 (M) 1 omp.updates.usana.com
12.130.138.78 (M) 1 omptrans.consumer.realtor.com
12.130.138.126 (M) 1 omptrans.email.norton.com
12.130.139.12 (M) 1 omp.pharmacy.cvs.com
12.130.139.17 (M) 2 omp.value.sears.com
12.130.139.38 (M) 1 omp.value.sears.com
12.130.139.40 (M) 2 omp.pharmacy.cvs.com
12.130.139.44 (M) 2 omp.value.sears.com
12.130.139.47 (M) 1 omp.pharmacy.cvs.com
12.130.139.55 (M) 1 omp.value.sears.com
12.130.139.58 (M) 2 omp.pharmacy.cvs.com
12.130.139.69 (M) 2 omp.whatwelove.lululemon.com
12.130.139.78 (M) 5 omp.email.quicken.com
12.130.139.114 (M) 2 omp.pharmacy.cvs.com
12.130.139.117 (M) 2 omp.em.searshomeservices.com
12.130.139.190 (M,RS) 2 omp.e.turbotax.intuit.com
12.130.139.221 (M) 2 omp.em.hawaiianairlines.com
12.130.153.104 (M) 1 omp.em.dsw.com
12.130.153.170 (M) 1 omp.emails.macys.com
12.130.153.171 (M) 1 omp.emails.macys.com
SendGrid: (Other than their shared email servers.. ;)
Not quite as good, would be better if the domains were
e.pricesmartfood.ca, otherwise someone might think they are 'phishing'
domains.. And using dotted quad notation in a PTR that is used for a
mail server is going to get you in trouble with a lot of filters.
167.89.3.119 (M) 1 o1.email.nationalresearch.com
167.89.15.42 (M) 1 o5.sg.thinkemailer.net
167.89.23.191 (M) 1 o2.email.flywheelsites.com
167.89.24.251 (M) 1 o5.email.flywheelsites.com
167.89.26.44 (M) 1 o1678926x44.outbound-mail.sendgrid.net
167.89.68.47 (M) 1 o3.email.e-pricesmartfoods.ca
167.89.69.141 (M) 1 o4.email.e-urbanfare.com
168.245.123.177 1
o168-245-123-177.outbound-mail.sendgrid.net
That goes for you too facebook.. (At least they have two naming conventions)
66.220.144.170 6
66-220-144-170.mail-campmail.facebook.com
66.220.144.171 11
66-220-144-171.mail-campmail.facebook.com
66.220.155.170 11
66-220-155-170.mail-campmail.facebook.com
66.220.155.172 8
66-220-155-172.mail-campmail.facebook.com
66.220.155.173 11
66-220-155-173.mail-campmail.facebook.com
66.220.144.144 30 66-220-144-144.mail-mail.facebook.com
66.220.144.145 29 66-220-144-145.mail-mail.facebook.com
66.220.144.146 34 66-220-144-146.mail-mail.facebook.com
66.220.144.147 30 66-220-144-147.mail-mail.facebook.com
66.220.144.148 32 66-220-144-148.mail-mail.facebook.com
66.220.144.149 33 66-220-144-149.mail-mail.facebook.com
66.220.144.150 35 66-220-144-150.mail-mail.facebook.com
IBM: (Don't have to say anything here do I?)
208.85.49.53 (M) 5 mail1004.fabricdotcom.mkt2178.com
208.85.53.224 (M) 1 mail2024.elsevier.mkt1881.com
Etoll: Seems not very consistent
216.24.226.46 (M) 1 email.tangeroutletsusa.com
216.24.226.89 (M) 1 mta89.cp20.com
216.24.226.105 (M) 1 mail1.campaigns.aptivada.com
216.24.226.156 (M) 1 mta1.schewels-email.com
--
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Visit us at http://www.linuxmagic.com @linuxmagic
A Wizard IT Company - For More Info http://www.wizard.ca
"LinuxMagic" a Registered TradeMark of Wizard Tower TechnoServices Ltd.
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