A very strange problem affecting one of my customers, any emails sent or forwarded from his standard POP3 email to his gmail account just never arrived. No bounce-back, no message saying why. When I created a new email and sent it to his gmail account, I got this:
SMTP error from remote mail server after RCPT TO:<[email protected]>:
550 5.7.1 recipient is in suppression list “bounces”
I contacted the registrar and the hoster. Finally, I got this from the hoster:-
The gmail address was added on the suppression list of our outgoing spam filter. I have removed it and you should no longer have this king of problems. Please wait about 10-15 minutes and try again to sent an e-mail test.
Suppression list???!! 5 days of email problems, all because of a spam filter.