How to fix Exim SMTP AUTH rewritting the from address

June 08, 2012 at 07:55 AM | categories: Tips, Exim, Email | View Comments

When using SMTP Authentication with exim and the default configuration you will find that exim rewrites the sender address to "email@address"@smtp_server_hostname

Return-Path:    <"">
Sender:     ""

To fix this you need to modify your acl_check_rcp acl and add sender_retain to control.

accept  authenticated = *
          control       = submission/sender_retain

Restart exim and you are good to go.

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