"On behalf of" added to the sender mail address

[jarodlwk]

I updated my cPanel/WHM yesterday. Today I noticed all my distribution list has the "on behalf of" added to the sender email address.

For example, for distribution list [email protected], recipients will see [email protected] on behalf of [email protected] in the From field.

How do I get rid of the "on behalf of" part?

 

[goddess_dix]

I updated my cPanel/WHM yesterday. Today I noticed all my distribution list has the "on behalf of" added to the sender email address.

For example, for distribution list [email protected], recipients will see [email protected] on behalf of [email protected] in the From field.

How do I get rid of the "on behalf of" part?

check in your exim configuration editor in whm, under mail options.

 

[cPanelDavidG]

I updated my cPanel/WHM yesterday. Today I noticed all my distribution list has the "on behalf of" added to the sender email address.

For example, for distribution list [email protected], recipients will see [email protected] on behalf of [email protected] in the From field.

How do I get rid of the "on behalf of" part?

Are you by chance using Outlook to view these emails?

 

[jarodlwk]

Yes, it only appears in Outlook. In webmail it is fine. Is it an Outlook problem? I don't have this before the upgrade.

 

[cPanelDavidG]

Yes, it only appears in Outlook. In webmail it is fine. Is it an Outlook problem? I don't have this before the upgrade.

The general consensus from reading through a Google search appears that it is an Outlook-specific issue caused by how Outlook processes mail headers.

 

[cPanelDavidG]

Playing around with the Exim Configuration Editor today in WHM, I found the following setting you may wish to uncheck if you want to remove the "on behalf of" in Outlook:

** Always set the "Sender:" header when the sender is changed from the actual sender. Unchecking this will stop "On behalf of" data in Microsoft® Outlook, but may limit your ability to track abuse of the mail system.

You can do this in WHM -> Service Configuration -> Exim Configuration Editor

 

[jarodlwk]

It was unchecked all the while. This only happens when mails are sent from Mailman distribution list.