0
I like to send a mail, but Thunderbird is aborting it with showing "Bad ENVID parameter syntax".
What can I do?
0
I like to send a mail, but Thunderbird is aborting it with showing "Bad ENVID parameter syntax".
What can I do?
0
The solution was to disable DSN (Delivery Status Notification).
See ENVID parameter in the RFC: https://tools.ietf.org/html/rfc3885