Werk #4042: Use well define From address in email notifications if none is configured

Component Notifications
Title Use well define From address in email notifications if none is configured
Date Nov 7, 2016
Level Trivial Change
Class Bug Fix
Compatibility Incompatible - Manual interaction might be required
Checkmk versions & editions
1.5.0i1
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0i1
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0i1
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0i1
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0i1
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0i1
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0i1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.4.0i3 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Previously when you didn't configure a From address for you email notifications in {{Monitoring configuration|Notifications|Parameters for ASCII Email}} or {{Parameters for HTML Email}} the email was created without a From address and the local mail delivery agent added that address by using its configuration or some default.

This cause a problem in the new synchronous STMP devlivery for emails, since there a From address is required.

Check_MK does now not longer rely on the default of the system mailer but always falls back to mysite@fqdn, where mysiste is the name of the Check_MK instance and fqdn is the fully qualified domain name of the monitoring host.

If the change in the From address causes a problem in your setup please simply set a From address by creating a global configuration rule in the upper settings.

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