longer is better). If you are on a slow connection or have multiple accounts configured you should modify it accordingly but no shorter than 10 minutes. "hm" &lt;(E-Mail Removed)&gt; wrote in message news:0AEADB81-41BE-4112-B8F0-(E-Mail Removed)... &gt; I have an costumer who has a problem sometimes, when he try to send an &gt; email, &gt; the mail is placed in the outbox folder, and when outlook starts the &gt; send/receive routine, it just keeps on cycling through the send job... &gt; &gt; ??1 out of 1 job completed?_ ?݃?݃?. ??1000 out of 1000 jobs completed?_ and just &gt; keep on growing and growing, and newer stops? The mail is newer send. &gt; Absolutely no error messages or anything??? &gt; &gt; The only way to stop it is to ??crash stop?_ outlook itself, and then he has &gt; to run scanpst to get access to his outlook again. I know this hasn??t &gt; anything to do with the first problem, but no wonder, he find this &gt; frustrating? But I guessing the scanning deletes the message from the &gt; outbox, and therefore fixes the problem. &gt; &gt; We tried different SMTPs, and antivirus programs, and every time I have &gt; left, it seemed the problem has gone away, but reappeared later. &gt; &gt; &gt; (He is running 2007 Office on a Windows XP machine.)