Mailnotifcations are send with the wrong address

Troubleshooting
,
1

CMK version: 2.0.0p21
OS version: Ubuntu 20.04

Error message:
You can see the notifications trying to be send in mail.log - but they are send using the wrong mail address ion scheme of sitename@localhostname. The the smtp and mailutils is therefore sending an error message that sitname@localhost is not allowed to send any mails by using the configures mail address. When I’m trying to send any mails using the OMD [sitename] manually like echo “” mail -s a.s.o. there is no problem and mails are beeing delivered correctly.
Have you got any ideas how to change this strange behavior.
Kind regards

2

Inside your notification rules you can define the “sent as”.
If nothing is configured there the system uses the default “sitename@hostname” as sender.
That’s correct.

3

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