An outside person receiving 5 to 6 messages when sent from the person's mail File....Please help

A user in the outside domain (internet world) receives 5-6 times the same message when sent from a particular user’s mail file in the Notes Domain here…

what could be the problem…I am new to Notes Admin …

Please throw some light what do I need to check in User’s Lotus Notes Mail file or is it something to do with the Server Connection Document to the outside internet address.

Please advise,

Regards

ac ac

Subject: An outside person receiving 5 to 6 messages when sent from the person’s mail File…Please help

Are this attachment mails , also check in smtp log.nsf