• 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.

help needed: mails are delayed several hours

Sven L.

Regular Pleskian
Hello,

could anyone point me where and how to start researching this problem a customer reports:

- they send an email at 16:00
- it doesn't arrive until 18:30


i have discarded local problems already. could it be greylisting related even tho it happens to mails between the same domain?
where should i start looking?


plesk 9.5.4 on ubuntu 10.04 and postfix
(i do realize there is no more official support for this version, but i will not update to 11.x when the 11.x forum is filled with dozens of bugs every day)
 
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