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I cannot find where can I set the mailer-daemon address for bouncy mail, now it is set to Mailer-Daemon@mydomain1.com and I would like to change it to Mailer-Daemon@mydomain2.com, but looking into all exim files I did not find it.

Tobia
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2 Answers2

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In your conf file you should just find/add bounce_sender_authentication and set like: bounce_sender_authentication = mailer-daemon@mydomain2.com

Example on exim github page - line 15: https://github.com/Exim/exim/blob/master/test/confs/3412

Jakob
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The option you need is dsn_from:

dsn_from = Mail Delivery System <Mailer-Daemon@$qualify_domain>

See https://www.exim.org/exim-html-current/doc/html/spec_html/ch-main_configuration.html