Some of our company mail is getting blocked - we had a bad virus infection yesterday (now cleaned) that sent out loads of mails on our behalf.

How to I find out who is blocking our mail ?

Cheers

Richard

 

How do you know it's getting blocked? If you knew you'd know.

If your not getting any response from whoever is blocking your mail, get everyone to send with read reciepts. That should give at least a clue.

 

I'm getting bounced back mail that says we are blacklisted.
One of the mail is saying the company that is blacklisting us. Now in the process of removing us from the list.
But I got a mail back from Belgium that is saying that their mail server can't accept mail from us, and I can't find who is blcking us.
DNS stuff is showing two that we are in the process of removing ourselves from the list but can't find any info from this mail from Belgium

Richard

 

SMTP makes no provision for "read receipts" so are completely unreliable.

 

If your system has been sending out spam e-mails due to a Virus then I would guess some of the recipients who received those e-mail have probably blocked your e-mail address/domain name on their system??

If you’re trying to send genuine e-mails and certain ones are bouncing back to you, can you not just contact those recipients and ask them to un block your e-mail address??

 

It may be you've been put on a real-time black list (RBL), which some of the companies/ISPs you're sending mail to are subscribed to. If that's the case, you'll need to find out who is running the RBL that has marked your IP/range.

 

Ouch. Someone's put a red cross outside your door. "God have mercy".