Been getting more and more delayed mail and authentication check fails from gmail (and yahoo but almost no one uses that) in the past maybe two years. Things like:
host alt1.gmail-smtp-in.l.google.com[108.177.125.27]
said: 421-4.7.0 This message does not have authentication information or
fails to pass 421-4.7.0 authentication checks. To best protect our users
from spam, the 421-4.7.0 message has been blocked. Please visit 421-4.7.0
https://support.google.com/mail/answer/81126#authentication for more 421
4.7.0 information. 22-v6si11112149pfy.169 - gsmtp (in reply to end of DATA
command)
The problem is of course I never really know if the mail got delivered or not (in case of retries, did the mail eventually go through etc). Or to be more specific, at this point I trust gmail about as much as my neighbour's dog.
And this happens to my regular email account, we are talking 1-5 mails per day here...
Is there anything (easy) to do about this? Make sure you have some option on in Pegasus? Make sure your nationwide provider is doing things correctly? Make every gmail person you know add you to their whitelist :D ?