Our team is discussing this internally, and curious about others
position on addressing list washing services.. Some are better than
others of course, identifying themselves correctly..
But then there are those on Digital Ocean or AWS that use throwaway
domains, or no clear identifiers..
While the idea of 'validating' an email address seems like a logical
thing to do, some of the list washing services appear to be just used to
wash old lists, or email address harvesting..
What is the position of the industry on these issues..
Eg..
Jan 3 09:13:07 be msd[875]: EHLO command received, args: lfuzemail.co
Jan 3 09:13:07 be msd[875]: MAIL command received, args:
FROM:<verif...@lfuzemail.co> BODY=8BITMIME
Jan 3 09:13:07 be msd[875]: MAIL FROM address: [verif...@lfuzemail.co]
Jan 3 09:13:08 be msd[875]: RCPT command received (104.248.175.86),
args: TO:<39hf7du28t8g5q0eb...@velocitynetworks.ca>
Jan 3 09:13:08 be msd[875]: RCPT address
[39hf7du28t8g5q0eb...@redaccted.ca] is local
Jan 3 09:13:08 be msd[875]: 39hf7du28t8g5q0eb...@redaccted.ca
BLOCKED as non-valid user (104.248.175.86)
^^^^ I think this is a test address to verify if the server supports
valid user checking in the SMTP layer..
Jan 3 09:13:08 be msd[875]: RCPT command received (104.248.175.86),
args: TO:<REDACCTED>
Jan 3 09:13:08 be msd[875]: Doing server-wide checks
Jan 3 09:13:08 be msd[875]: Looking up domain lfuzemail.co (this
may take a while)
Jan 3 09:13:08 be msd[875]: Done server-wide checks
Jan 3 09:13:08 be msd[875]: RCPT address [REDACCTED] is local
Jan 3 09:13:08 be msd[875]: REDACCCTED BLOCKED as non-valid user
(104.248.175.86)
Jan 3 09:13:08 be msd[875]: QUIT command received, args:
host -t TXT lfuzemail.co
lfuzemail.co descriptive text "v=spf1 include:_spf.google.com ~all"
lfuzemail.co descriptive text
"google-site-verification=6RebLaieQA1-0bYkmXM1r4blrusAGXJSHqGnNUTq1Fc"
And of course, the SPF records don't jive with attempting to
connect/send from Digital OceanIP Space..
Would love to hear opinions and practices being used on list washers..
--
"Catch the Magic of Linux..."
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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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