Werk #16630: Prevent check_mail crash for "Move to subfolder" option

Component

Checks & agents

Title

Prevent check_mail crash for "Move to subfolder" option

Date

Mar 18, 2024

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.4.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0b4	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0p26	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

The active check check_mail can be configured to move mail messages from the inbox to a subfolder via the options "Forward mails as events to Event Console" > "Cleanup messages" > "Move to subfolder".

For IMAP the copying of mails crashed when there were no mails available in the inbox. This is fixed to skipping the copy command in case there are no mails given.

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