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Hello 
All reply mails from my customers failed in odoo. I can see them in Technical>E-mails.


The error message :
Échec d'envoi de l'e-mail Échec de l'envoi de l'e-mail via le serveur SMTP 'None'. SMTPDataError: (550, b'5.7.1 Sender mismatch')


I created all alias email in my provider and set them in outgoing/incoming server. 
Might be something i forgot.


Thank you

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Best Answer

Hi,

The error message indicates that you tried sending an email from an unverified email address. Investigating the outgoing email server configuration or the default FROM address of your database is a good starting point to troubleshoot the issue, and verify that you whitelisted the email address.

For a comprehensive visual guide on configuring email servers in Odoo 18, you can refer to the following video:


Regards,
Jishna
Accurates

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