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IDProjectCategoryView StatusLast Update
0001588Blogwebsite contentpublic2026-05-07 20:06
ReporterL10N Assigned To 
PrioritynormalSeveritymajorReproducibilityalways
Status newResolutionopen 
PlatformLaptopOSLubuntuOS Version16.04 LTS
Summary0001588: No e-mails can be sent from cacert.org sender address
DescriptionWhile sending an e-mail to an e-mail-address from a cacert.org sender address with an e-mail-programm, I get the followiing error message:
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Senden der Nachricht fehlgeschlagen.
Fehler beim Senden der Nachricht: Der Mail-Server antwortete:
<myname@cacert.org>: Sender address rejected: not owned by user myname.
 Bitte überprüfen Sie die E-Mail-Adresse des Empfängers "hisname@hisprovider.de" und wiederholen Sie den Vorgang.
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The same happens to all other e-mail addresses, even @cacert.org

If there are more than one address in the e-mail, in the error message is shown only the first one. If I remove that one and try to send again, the next one is mentioned in the error message, etc. etc.

Nota: Receiving works well.
Steps To Reproduceopen thunderbird
go to the cacert account
create new e-mail
send it
Additional Informationmail programm: Thunderbird 115.18.0 (64-Bit)
operating system: Lubuntu 16.04 LTS
server: community.cacert.org
Port 143
IMAP

Time:
The last e-mail I could send was on April 25, 2026, 01:00
The first e-mail I has to send from a not CAcert account was on May 1st 2025 10:10
Tagse-mail, imap, mail
Attached Files
Thunderbird.png (51,320 bytes)   
Thunderbird.png (51,320 bytes)   
Fehlermeldung.png (97,913 bytes)   
Fehlermeldung.png (97,913 bytes)   

Activities

Issue History

Date Modified Username Field Change
2026-05-07 20:05 L10N New Issue
2026-05-07 20:05 L10N Tag Attached: e-mail
2026-05-07 20:05 L10N Tag Attached: imap
2026-05-07 20:05 L10N Tag Attached: mail
2026-05-07 20:05 L10N File Added: Thunderbird.png
2026-05-07 20:05 L10N File Added: Fehlermeldung.png
2026-05-07 20:06 L10N Description Updated