Error No: 17895

[Loks]

Dear Sir,

Since from 6 months I am facing one problem in my MAC operating system. Please help me in this regard.

Problem is:

If I send any mail to one particular email address that mail doesn't go. But I can receive email from that particular address. When I send any mail it will show the error no:17895. and it shows connection to the server may failed or dropped. Please help me in this regard

Thanks & Regards
Lokesh.