1735813 - Not possible to move email to Return-receipt+Disposition-notification fields

Status: UNCONFIRMED

(Thunderbird :: Untriaged, defect)

Description

[orwel01]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0

Steps to reproduce:

1. Open compose window (create new message)
2. Enable Return-receipt-to or Disposition-Notification-To to show the field for entering email address.
3. Double click some email address from Side panel - Address book (I use my own).
4. The email address is assigned to the TO field.
5. Try to move the email address by holding left click mouse to other fields

Actual results:

You can move the email address to the fields:

• Reply to
• To
• Cc
• Bcc

You can not move the email address to the fields Return-riceipt-to or Disposition-Notification-To, the email address disappears.

Expected results:

You should be able to move it also to other fields as mentioned above, otherwise you have to write it down every time manually.
I know about the possibility of using receipt button, but if using Send later addon which does not support Return receipt (it is not working by delayed message, see https://blog.kamens.us/send-later/), you need to use also this 2 fields.