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User can't receive Mail in Odoo 19

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mailmailserver
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Zorgoban

I just set up Odoo 19 with docker, configured the alias domain and added an incoming mail server. When I try to send a mail to an Odoo user I get this message in the log:


ValueError: No possible route found for incoming message from "Sender" <any@where.com> to user@recipient.domain (Message-Id <#####>:). Create an appropriate mail.alias or force the destination model.


The documentation doesn't give any hint on how to set this up. They are only writing about aliases for groups/teams. But no word about how to communicate with single Odoo users.


What is missing in the config? The software should have all the info it needs.


Thanks and greetings!
Z

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Zorgoban
Author

Thanks for the answer!
After creating an alias the log entries have changed, but I still don't see a new discussion channel after receiving the mail.
2026-03-02 15:32:48,846 1 INFO Company odoo.addons.mail.models.mail_thread: Routing mail from "Sender" <any@where.com> to user@domain.com with Message-Id <#####>: direct alias match: ('discuss.channel', 0, {}, 1, mail.alias(6,))
2026-03-02 15:32:48,856 1 INFO Company odoo.addons.mail.models.mail_thread: Primary email missing on discuss.channel
Many greetings!
Z

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Zorgoban
Author Best Answer

Thanks for the Answer!

Odoo should know where to put the mail because the mail recipient and the mail address of the user are identical. I definitely want to avoid to have to configure an alias for every single user.

I don't understand the Odoo documentation about the Catch-All concept in Odoo. Catch-All is just a setting on a mailbox. The phrase "catchall" is not meant to be used in mail addresses. It just means that mails from a mailbox should be assigned according to the TO header field instead of a specific user. But the incoming mail server settings don't have such options. I can't specify a user for the mailbox and I can't activate a Catch-All option.

I still don't understand how to solve this.

Many Greetings!
Z

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Sangar
Best Answer

Hi Zorgoban,

The error happens because Odoo doesn’t know where to put the incoming email. Odoo doesn’t automatically send emails to individual users you need a mail alias.

What to do>

Go to (Settings => Technical => Email => Aliases) and create an alias for the user (link it to their partner).

Or use a catchall email in Incoming Mail Servers so Odoo can handle emails from anyone.

Make sure your mail server settings are correct and the domain matches the alias.

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Cybrosys Techno Solutions Pvt.Ltd
Best Answer

Hi,

In Odoo 19, incoming emails are always routed through the alias mechanism, and Odoo does not automatically deliver emails directly to individual users just because they have an email address configured. The error “No possible route found for incoming message” means that Odoo successfully received the email from the incoming mail server, but it could not find a matching mail alias linked to a model to process it. For Odoo to accept emails sent to user@yourdomain, the alias domain configured in Settings must match that domain exactly, and you must create a corresponding alias under Settings → Technical → Email → Aliases, defining an Alias Name (for example, “user”) and linking it to a target model such as crm.lead, helpdesk.ticket, project.task, or mail.channel. Without this alias record, Odoo has no instruction on which business object should handle the message, so it rejects it. Odoo works as a business document mail gateway rather than a traditional mailbox server, so proper alias routing is mandatory for incoming emails to function correctly.

Hope it helps

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