The FROM address is replaced by the forwarder email address when the Fix incorrectly set sender for outgoing mail option is enabled

Dmitry Bystrov

10 months ago

Symptoms

The Fix incorrectly set sender for outgoing mail option is enabled in Plesk > Tools & Settings > Mail Server Settings.
The Switch on mail forwarding option is enabled in Domains > example.com > Email Addresses > johndoe@example.com > Forwarding and janedoe@domain.tld email address is added into Forward incoming messages to the following email address field:
Click on the screenshot below to expand
In an attempt to send an email from original_sender@example.com to johndoe@example.com address, in the email which forwards to janedoe@domain.tld account, the FROM address is replaced by the forwarder email address(which is johndoe@example.com).
The following message can be found in /var/log/maillog file:
plesk sendmail[5334]: handlers_stderr: INFO:__main__:Address in header 'From: Plesk Test <original_sender@example.com>' was changed to 'johndoe@example.com'

Product issue:

#PPPM-12293 "Sending an email from a mailbox associated with domain A to a mailbox associated with domain B that is hosted in Plesk with “Fix incorrectly set sender for outgoing mail” enabled in “Tools & Settings” > “Mail Server Settings” and forwards mail to a mailbox associated with domain C no longer changes the “From” header as if the email originated from domain B and not domain A."

Fixed in:
- Plesk Obsidian 27 October 2020 (Linux)

Please consider updating your server:

If update is not possible for some reason you may try the following

Until the bug will be fixed apply the workaround below:

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