Thanks a lot 1. These logs are of the moment when when an gmail attachment was initiated on the user machine. 2. Logs have been filtered for that particular user, and hence have not been shown in the previous post. 3. I am worried that, while initiating the mail attachment in the user machine, no other task was being performed on that machine, so how come the line 1449226966.745: 0: TCP_DENIED/403: 4090: GET: http://download.newnext.me/spark.bin?: -: HIER_NONE/ come into picture, of cource access to http://download.newnext.me/spark.bin is not allowed in proxy server, but even we dont think to allow that, 4. if http://download.newnext.me/spark.bin have nothing to do with mail attachement problem, then what could be the cause, I really appreciate your replies, Again I am thankful to you -- *Thanks and RegardsVivek Kumar SinghJ.T.O./ITPC-KolkataMobile 08902000538Landline 033-23211548* _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users