Mail delivery failed via SMTP server 'None' V17

Question

It seems that already a bunch of similar posts or issues in this forum exists, but none of them matches my case 100%. So here is another one:
I get this error when Odoo tries to send a mail:
Mail Delivery Failed
Mail delivery failed via SMTP server 'None'.
SMTPDataError: 550
5.7.1 Sender mismatch The outgoing mail server seems to work ok and I used the same SMTP server in other older Odoo installations with no problems. The thing that puzzles me is the new field *FROM Filtering.*
I tried several

Lucas Huber · Answer

here is the log from the debug mode, the first section is the result of the test SMTP command, the second is a mail sent by Odoo:

https://pastebin.com/0rQuzfV5 [1]

[1] https://pastebin.com/0rQuzfV5

Peter · Answer

The 'None' in your SMTP server message (2nd line in your error message) is the 'None' from Python when it can't find a value for a field.  Do you definitely have an SMTP server configured and is Odoo authenticating correctly ?
In v17 (at least), there is a 'debugging' flag in the SMTP server configuration.  Turn that on and see what the debug log shows you (or paste it here, being careful not to post confidential information).

Relaterade inlägg	Svar	Vyer
Email Issue mail mailserver v17	0 juli 24	2650
Odoo 17 email SMTPDataError: 552 smtp mailserver v17	1 feb. 24	4039
Ya es posible hacer Upgrade de v17 a v17.1 ? v17	1 okt. 25	3624
How to add a new Many2one field in res.config.settings? Löst v17	4 okt. 25	6586
Add field to ALL models in Odoo v17	2 sep. 25	4856

Denna fråga har flaggats

Njuter du av diskussionen? Läs inte bara, delta också!