I need a solution
Hello,
Since yesterday our users are reporting problems sending mails to some of our partners. All error messages bounced back inform the same:
Detected error: | 550 5.0.350 Remote server returned an error -> 553 Message filtered. Refer to the Troubleshooting page at;http://www.symanteccloud.com/troubleshooting for more;information. (#5.7.1) |
Checked many websites for problems with our domain or our web, but all are Ok.Checked our originating IP with "IP Reputation Investagation" (http://ipremoval.sms.symantec.com/lookup/), but says our IP have no reputation problems. We don't know the mail servers IP, since we have mail hosted at Office 365.
Please, need help to solve this issue.
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