• Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
    If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
  • We plan to deprecate and remove the support for XML RPC protocol versions earlier than 1.6.9.1 in Plesk Obsidian 18.0.82. We strongly recommend that you update all existing integrations using earlier versions of the XML RPC protocol to comply with the version 1.6.9.1 specification.

Windows Plesk: Outbound Spam

A

anytimemoney

Guest
Somebody is sending SPAM from my server (Windows Plesk 8.6.0.5). This results in the main server IP getting blacklisted.

1. How to identify the spammer on my server .. or the compromised account?

Can the sender be identified from: C9EEDB720A4B4A5CA487B4AB3CD7BF3A.MAI
or
ME-I0018: [F8E9D6D22AC34047B86D7CB83E3C75FA.MAI] Outbound message from ([SMTP:[email protected]]) requeued as [300E2AA30B7F4A40974C3973FC9F47D4.MAI] to the target domain [some_domain.com]

(using MailEnable Standard)

2. How to further secure the server to prevent sending such spam messages?
Emails have been sent using the 'From' field containing email IDs of Yahoo, AOL, Gmail, etc.

3. Is there any way to limit the number of email that can be sent in an hour from a particular hosting account?
 
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