Tracking Duration When changing status (selection field) just like many2one field (stage_id) on CRM app
Auto unsubscribe followers before sending a message.
Usability improvements on mails
Mail Whitelist
Add datetime in activity planning
Mark as read or delete mails after a set time
Basic digest mail handling.
Adresses filter by partner contacts and users
Modern presentation of the messages of your discussion
Mail notification setting
Open mail in new window
Send email to parent partner if partner's email is empty
Mail resend exception to sender
Set mail server by model or different action of same model, so whenever mail is send from that particuler model/action, system use the configured mail server while sending mail.
Mail/Message Related Source Document Link