Is there any Adobe Campaign documentation at all where I can find a list of deliverability errors just as, what it means:
- 491 Proxy connection to MX #IP# failed.
- No mx records have been found! Domain: '#DOMAIN#'; Type:28; Time used:97 ms
- DNS query failed for '#DOMAIN'#
Any help, is much appreciate it.
You can look into this document and see if it helps.
I would also decode the messages just in case :
the error messages DNS query failed for '#DOMAIN'# means the delivery was sent to an incorrect domain.
No mx records have been found - means for the receiving domain there are no MX rules defined in the campaign instance
491 Proxy connection to MX #IP# failed - The connection from Campaign MTA failed to establish a smtp session with the receiving domain.