Major failure over the weekend

Hi,

We had a major crash off the server over the weekend.
SDP backup files just filled up & took all the disk space.
The current Transaction log has shot up to 4.5gb it was 1.5gb on Friday (needs to be cleaned down anyway!).

I think I know the issue, but just checking with you guys first :o)

Looking at the system log viewer we've had quite a few mail_fetching errors.

First one was -
Issue in email fetching

MAIL_FETCHING

Sat Nov 15 11:42:32 GMT 2008

Mail fetcing is delayed ....due to schedule time=1226746662133 more than curren sys time=1226749352986, finishTime=1226746602133, startTime=1226746601917, timeToWait=1860000

Then the rest were like this final one -
Issue in email fetching

MAIL_FETCHING

Sat Nov 15 21:50:10 GMT 2008

Mail fetcing is delayed ....due to start time and finish time is ZERO

This message kept popping up every 10 minutes.

We've had problems with our DNS servers over the weekend which has resulted in their service having to be restarted this morning.
Is it likely the TL log has just been filled with events & errors caused by the SDP server unable to contact the mail server, AD servers, clients etc etc due to the DNS issues?

Thanks for any help you can give!

Carl