Email bounceback/Listed on CBL
Posted on 2013-01-16
We are experiencing email issues at the moment which I think may be linked but have different error messages.
The bouceback error is:
The mail protocol was unable to handle one or more requests because they were unrecognized or invalid. Please notify your system administrator.
<riverexch.riverltd.co.uk #5.5.4 smtp;554 5.5.4 unblock
The domain linked to this error (who it's going to) is @lincolnshire.coop
We are currently listed on the CBL and I need to de-list our external IP address but wondered if the above is linked to this...as we're getting seperate bouncebacks that state it failed because we're blacklisted!
Urgent advice would be hugely appreciated.