My last post has now disappeared!
Yes I am sure this is a public facing ip. You can look up the ip from either of the emails provided.
I cannot give the full sender details etc on a public forum with no 'Mark as Private' functionality!
My company are really very unhappy about this now.
The latest blocked email is as follows:-
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 cluster4.eu.messagelabs.com [85.158.137.68]
SMTP error from remote mail server after initial connection:
501 Connection rejected by policy [7.7] 3102, please visit www.messagelabs.com/support for more details about this error message.
Reporting-MTA: dns; miconcepts.co.uk
Action: failed
Final-Recipient: rfc822;**********
Status: 5.0.0
Remote-MTA: dns; cluster4.eu.messagelabs.com
Diagnostic-Code: smtp; 501 Connection rejected by policy [7.7] 3102, please visit www.messagelabs.com/support for more details about this error message.
The ip for this one may be 109.123.84.109, which is another ip on the same server as the first.
So for clarification we have host1.miconcepts.co.uk - ip 109.123.121.23 and miconcepts.co.uk - ip 109.123.84.109, both being blocked. Neither showing up on your 'IP Reputation Investigation page'. Not happy!