You can disable the notification for you in the "User Preferences" (top-right corner). Just set the field Receive Feeds by Email to another value than All feeds.

You can set the same field in the "Settings -> User" menu for other users.

You can easily mass change "notification_email_send" for all existing customers this way :

• CSV export all your customers
• Change quickly the column "notification_email_send" (or add it if not in you csv) to "Never"
• remove all columns except "id" and "notification_email_send"
• Import you csv back to Openerp.

Then you can change the default value to prevent new customers being notified.

• Go to the customer form view
• Clic on top right on your name > "about openerp" > activate developer mode
• You will see a new dropdown just before the form title. Select "default values".
• Set your default value for notification. Choose "all users".

Note : I'm using Openerp V7 in french. Texts may be slightly differents. Hope this help.

If it's for customers, you can configure on:

Customers --> Sales & Purchases --> Receive Messages by Email | Opt-out

When opt-out is checked, the customer dont receive more emails

I think this is broken so I filed a bug https://github.com/odoo/odoo/issues/7374 the problem is that if you change the notification preferences of the customer to not get the spammy notification stuff then they also don't get actual emails that you try to send them. 

Perhaps, this module https://apps.odoo.com/apps/modules/9.0/internal_thread/ would solve your problem

We had  the  same  problem  but  the  previous  suggestion  of  disabling  the  'default'  checkbox  on  the  email subtype  didn't  work  for  us.  

We  eventually found  a  way  with  the  help  of  Odoo  support that  did  work :  

• go to sales application > configuration > quotation template. 
• open the quotation template  you  are  using
• go to the confirmation tab, edit and delete the confirmation mail 

This should prevent any emails sending when the sales order is confirmed.

Hello

Try below code to avoid email notification when try to create new record (version 10.0)

For example if you want to create new task but disable email notification to follower you can reference below code

task = super(Task, self.with_context(mail_notrack=True)).create(vals)

Hope this help you.

Best Thanks,

Ankit H Gandhi.

For me works this way in Odoo 8 for automatic email in sale orders confirmed, without disabling Portal option in Settings:

• Go to "Settings / Technical / Email / Subtypes"

• Select "Sales Order Confirmed"

• uncheck "Default" option

Francisco,

Go to Customer --> select customer for which you don't set off notifications --> Sales & Purchase --> Check Opt-out. This will defiantly work for you. By checking this option for selected customer won't get any notification mails.