I need a solution
Hello!
We are a company offering various hosting services.
Recently, one customer have complained over Mail delivery failed: returning message to sender
Server ip 162.210.98.151 (deszr.com)
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 cluster1.eu.messagelabs.com<ht tp://cluster1.eu.messagelabs. com> [193.109.254.67]
SMTP error from remote mail server after initial connection:
501 Connection rejected by policy [7.7] 5608, please visit www.messagelabs.com/support< http://www.messagelabs.com/ support>
I would appreciate if anyone could help to this matter.
Thank you very much and good day.
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