Topic: Many messages in queue

[Audrius]

Hi,

after upgrade from 4.1.2 to 5.1.2 on server there is usually ~50-60 messages in queue. And some of them stay there for long period - about 5-8 day. I am thinking to put Internet provider's SMTP server for sending e-mail, not direct sending with my server. Maybe this will solve problem... Is there any disadvantages of doing that?
And, how can I find where is problem: in my connection, in recipients servers or could it be my ISP DNS server problems?

Please help!!!

Audrius