Forwarding E-mail and the Limits

dannymichel

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Aug 13, 2013
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I have a cPanel account level filter that redirects mail from my server to gmail, but gmail doesn't allow attachments over 25MBs. I have tested it, and it in-fact does send a gmail attachment size exceeded error. My question is are there parameters I can set in cPanel that says redirect mail if this and if that but do not if attachment size exceeds ---MBs?
 
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cPanelMichael

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Apr 11, 2011
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Hello :)

You could utilize the "message_size_limit" in Exim to block emails that are over a certain size. This is documented at:

14. Main configuration

Per this document:

This limit cannot be made to depend on a message’s sender or any other properties of an individual message, because it has to be advertised in the server’s response to EHLO. String expansion failure causes a temporary error. A value of zero means no limit, but its use is not recommended. See also bounce_return_size_limit.
You can enable this limit via:

"WHM Home » Service Configuration » Exim Configuration Manager » Advanced Edtitor"

Browse down to "Add Additional Configuration Setting" and it will be listed in the drop-down list.

Thank you.
 

dannymichel

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Aug 13, 2013
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i dont want to block the emails. i want to the the exact opposite. i want the emails to come through. the emails forward to gmail, but when they are over 25mbs, the fail. i want cpanel to keep emails over 25mbs on the server rather than trying to redirect them to gmail
 

cPanelMichael

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While you may be able to setup a custom filter with Exim, it's not something that is possible through the use of the filter options in cPanel. Feel free to open a feature request for this via:

Submit A Feature Request

Or, you can develop a custom filter rule using the documentation at:

3. Exim filter files

Thank you.
 

cPanelMichael

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Apr 11, 2011
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Check /var/log/exim_mainlog to see if the email forward was attempted at all. Do you have a forwarder setup for the email address where mail was cc'd to?

Thank you.