Bug 442224

Summary:	Enabling "Undo Send" cause recipient rejected due to null sender
Product:	[Applications] kmail2	Reporter:	Matteo Brutti <webmbackslash>
Component:	general	Assignee:	kdepim bugs <pim-bugs-null>
Status:	RESOLVED WAITINGFORINFO
Severity:	normal	CC:	montel, webmbackslash
Priority:	NOR
Version First Reported In:	5.15.3
Target Milestone:	---
Platform:	Debian stable
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Matteo Brutti 2021-09-09 12:21:18 UTC

SUMMARY
Enabling "Undo Send" cause every message sent is rejected due to "Failed to transport message. Server error: 5.7.1 <xxxx@example.com>: Recipient address rejected: Policy rejection due to null sender"


STEPS TO REPRODUCE
1. settings => configure kmail => tick "Enable Undo Send"
2. send an email

OBSERVED RESULT
Server does not send the email giving:
"Failed to transport message. Server error: 5.7.1 <xxxx@example.com>: Recipient address rejected: Policy rejection due to null sender"

EXPECTED RESULT
email sent

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.78.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Debian: 11

Comment 1 Laurent Montel 2021-09-09 13:24:00 UTC

5.15.3 is very old (last is 5.18.0)
Please verify in new version.
it works fine here.