When we try to deliver messages to some domains we receive message “SMTP error from remote mail server after initial connection: host cluster8.eu.messagelabs.com [18.104.22.168]: 501 Connection rejected by policy [7.7] 3809, please visit www.messagelabs.com/support for more details about this error message”
I checked in http://ipremoval.sms.symantec.com/lookup/. And is not listed.
Could you please help us to remove our IP 22.214.171.124 from blacklist.
Thank you in advance.