I had almost the same situation but I wanted to suppress the send email just to the Opportunity/Lead when it was created.

I had success using Automation Rules and Subtype as domain.

Name: Supper CRM Assignment email 

Model: Outgoing Mails

Trigger: On save

Before Update Domain: Subtype is in Opportunity Created

Apply on: all records

Action to Do: Update to (Partners) by clearing it

Hi, 

I have the same issue with email header.

I don't know how to remove the two lines/opportunity name when I send message through the chatter.

​------------------------------------------------------------

​#Name of opportunity 

​------------------------------------------------------------

​Body text 

I didn't find the email template used for that.

Any idea ?

Thanks !!

Jérôme

Hi

Yes, it is possible to configure the email templates in Odoo so that the email starts with the body text directly, without displaying the company logo and lead/opportunity name in the header.

To achieve this, you can customize the email template used for sending emails to leads/opportunities.

Follow these steps:

* Go to the "Settings" menu and select "Technical" > "Email" > "Templates".
* Search for the email template that is used to send emails to leads or opportunities.
* Open the email template by clicking on its name.
* Modify the template content to remove the parts you don't want to include in the email.
* Save the changes to the email template.

Hope it helps