From Bugzilla Helper: User-Agent: Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.1b) Gecko/20020729 BuildID: 2002072910 When I try to send message with big file (420K in my example) attached to it or just send a big message (540K in my example) "Delivering mail" operation is very slow on my PII 450MHz 256M RAM (35-50 secs). There is no problem with same other programms (PMMail took about 5 secs). Reproducible: Always Steps to Reproduce: 1. Open "Compose message" window 2. Enter e-mail and attach big file 3. Try to send Actual Results: Mail delivering is very slow Expected Results: Should be more quickly

IMAP or POP?

I really don't understand how POP or IMAP interacts with SMTP sending but I use POP to fetch mail.

Have you tried this recently?

dup of 184620?

This should be fixed *** This bug has been marked as a duplicate of 180516 ***