When I send some emails with kmail2 the mail dispatcher agent sometimes forgets about my SMTP password, and prompts me for re-entering it. There is no particular thing to do to make it prompt me for a password, besides sending emails. There might be some kind of 24h delay after which the password is forgotten.

Reproducible: Sometimes

Steps to Reproduce:
1. Compose a mail
2. Send the mail
3. Mail Dispatcher Agent prompts for the SMTP password
Actual Results:  
The Mail Dispatcher Agent does not retain the SMTP password

Expected Results:  
Mail Dispatcher Agent should retain the SMTP password