Delta Chat version
Message is sent as indicated by a green checkmark at the bottom right of the message.
A cross symbol instead of a checkmark indicates that the message has not been sent.
Below the message is an info box saying “permanent: 5.3.3 Command not implemented”.
Steps to reproduce the problem
I wanted to send a regular message to a contact as I had done without problems two weeks earlier.
I haven’t updated Delta Chat or changed the configuration in the meantime.
I only switched to a second account at some point and switched back today.
It fails also for other contacts, even in “Saved messages”.
As I understand the description on the mail provider’s page, it’s a Microsoft server:
The mailboxes of a mail domain are hosted on a central Exchange system
However, sending mails from Thunderbird and K-9 Mail works with that account as usual.
There are also no issues in Delta Chat with the second account which is on a completely different server.
I’m aware that it’s therefore probably a server issue. I don’t know what to make of the error message, though – which is the unimplemented command and why is it suddenly a problem? I also wonder why it doesn’t appear in the other e-mail applications.
03-04 20:22:28.069 5237 12544 W DeltaChat: src/job.rs:254: SMTP failed to send: permanent: 5.3.3 Command not implemented 03-04 20:22:28.069 5237 12544 W DeltaChat: src/message.rs:1500: Msg#445 failed: permanent: 5.3.3 Command not implemented 03-04 20:22:28.100 5237 12544 I DeltaChat: src/job.rs:1100: Finished immediate try 0 of job #387, action SendMsgToSmtp 03-04 20:22:28.100 5237 12544 W DeltaChat: src/job.rs:1052: Smtp removes job #387, action SendMsgToSmtp as it failed with error Permanent SMTP error: permanent: 5.3.3 Command not implemented