Emails not arriving

[lasto]

Im on a dedicated server and have just impexed my board to a fresh board because of this problem but its still not fixed.

Sending emails to members does not work - they get sent out but they dont arrive.
Ive done quite afew tests such as sending them to my account only but nothing again.

Any ideas on how i can sort this one out - it may be a host problem but before i contact them is there anything i can check on my side to se what the problem may be ?

[snakes1100]

Tail the maillog and send out a email, post the results here and we can better help you.

example:
tail -f /var/log/maillog | grep "name@name.com"