Spamhaus Domain Blocking List


I have just had an email to an address bounced (things to this address were fine last week):
This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

host []
SMTP error from remote mail server after pipelined sending data block:
550 5.7.1 Service unavailable, Helo domain is listed in Spamhaus. To request removal from this list see (S8001) [ 2024-06-25T10:08:46.306Z 08DC8C4F791CBF1B]

Following the Spamhaus link a search on the domain shows it has one entry on their Domain Blocking List.

Are you guys already on this or does it need a ticket raising.



Update: The impact for me was greater than originally thought so I raised a ticket. Support responded quickly to say that had been listed for a few hours overnight, but was already delisted - it is now a matter for the update to ripple through everyone else’s servers.