I have a client who’s emails started getting blocked on March 1st to a specific email. I have tried emailing email@example.com, but it bounces back with this responce:
I’m sorry to have to inform you that your message could not be delivered to one or more recipients. It’s attached below.
For further assistance, please send mail to <postmaster>.
If you do so, please include this problem report. You can delete your own text from the attached returned message.
<firstname.lastname@example.org>: 554 5.1.2 Recipient address rejected: User unknown
I have tried emailing CLOUDfeedback@feedback-87.brightmail.com with not responce or a notification of it being delivered. I have called the support 1-800 number and was directed to the sites I have already been to. If there any way to get a domain or ip address removed from the blacklist that actually works?
Any help would be appriciated.