Sendmail

[NiC]

Hello everybody!
I'm not so professional in FreeBSD and Sendmail, so do not smile while reading this message please :)

I have a server running under FreeBSD, which has a permanent real IP address. When I'm trying to send the mail via this server the mail client connecting sooooooooooo looooong time, that I almost every time have time-out warning. What could be a problem?

System: FreeBSD 4.7
MTA: Sendmail 8.12.9

Thank You in advance.

Nikolay