Lotus Notes Sending problem

[Billie]

Hi ..

I have prblm while sending mail to destination with following message
05/26/2009 08:18:57 AM  59 Transactions/Minute, 17 Notes Users
 Msgs State     Via   Destination
       46 Retry(25) SMTP  bbb.com (Push)
                      Last error: The server is not responding. The server may b
e down or you may be experiencing network problems. Contact your system administ
rator if this problem persists.
                      Next retry: 05/26/2009 08:32:49 AM    


What cause this problm , this is intermmitent issue, that's mean after 1-2 days it backs to normal, after that the problem occured again!.
Meanwhile another mail is normal . only 2-3 destinations have this prblem.

My Server is IBM Xseries , Xeon 2.0 Ghz, RAM 4 Gig, Internet bandwidth 1 Mbps.
Using Domino Server 7.0

Anyone can explain me more ?

Thank you guys.

rgds
Billie

[pierogyman]

I would start with the basics.

Make sure you don't have a network issue first before troubleshooting Domino.

Check your network cables, switches, NIC's, ect. and then move from there.