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king_nak
Asked: 2016-04-28 01:52:38 +0800 CST

deactivate notification on delivery failure in sendmail

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How can I deactivate all delivery failure notifications in sendmail?

I have a internal testmachine hosting websites for testers. The sites use sendmail via PHP. Now whenever a tester enters a dummy address, I get a notification in my local mailbox. As this is an internal test machine, I'm not interested in any of those mails, and the notifications spam my box (had 28.000+ mails there).

linux sendmail

2 Answers

  1. Have you set PostmasterCopy in your sendmail.cf?

    grep PostmasterCopy /etc/mail/sendmail.cf

    YES => You may turn it off

    confCOPY_ERRORS_TO PostmasterCopy

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  2. Make sendmail at test machine capture/deliver outgoing mails to local mailbox/alias e.g. capture.

    sendmail.mc line to capture ALL outgoing emails (sendmail.mc requires compilation into sendmail.cf): 

    define(`SMART_HOST',`local:capture')dnl

    mailertable line to capture email to specific test domains:

    example.com  local:capture1
example.net  local:capture2
example.org  local:capture3
# entry for sub-domains of example.org
.example.org local:capture3 
# entry for "all remaning domains"
.  local:capture
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