Incorrect mail address creation when ticket change state

[pepinho7]

Module

helpdesk_mgmt

Describe the bug

Once the ticket has been created via email from an unregistered user and the stage is changed to 'Done', a contact is created with the wrong email. The &gt is added at the end of the email address. For this reason the sending of the mail for the change of stage fails.

To Reproduce

Affected versions:

Steps to reproduce the behavior:

1. Go to Settings > Incoming mail servers and set in 'Actions to Perform on Incoming Mails' Helpdesk ticket for Create a New Record
2. Create a Team with a mail alias that can accept emails from everyone
3. Send from a mail to that alias with an unregistered (external) user
4. Move the automatically created ticket to the 'Done' stage

Expected behavior
A mail message should be sent to the mail address that generated the ticket

Additional context
Running Odoo 14.0

[afbenevides]

Hello, I have same problem.

Before installing module named: Email_Format_Checker (partner_email_check), I had an error message on a new created ticket from outside user by mail: Validation error, Email invalid

After installing Email_Format_Checker, I have exact same error as you, Validation error, external.user@mail.xx&gt is an invalide email

Did you find the solution to that problem?

[mathben]

What is the content of the field partner_email?
When a ticket is create by an external email by email gateway, it's create email like '"Name" name@company.com". It supposes to be "name@company.com". When close tickets, I have the same error of you.
Check #491