Mail Trouble

[m u r]

I sent an email with a somewhat large attachment. The email never reached its destination, and now I cannot send any email using that account. I still receive mail just fine. Using another account, I again had the same problem. Now two of my accounts can only receive email. Any idea what could be happening?

Thanks.

[till]

Please have a look at the mail log while you are sending a mail with one of the accounts that dont work. Which rror messages do you see in the mail log?