Ch?o c?c b?n, V? nguy?n t?c, B?t c? email n?o b?n g?i s? d?ng giao th?c SMTP t? email client (MUA) qua c?c email server (MTA) ??n end email client, khi qua MTA s? ???c g?n th?m th?ng tin v?o header (g?m IP v? time). ?? l? chu?n ?? debug l?i c?ng nh? tr?nh vi?c gi? m?o v? g?i th? r?c.
M?nh l?m 1 c?i test: D?ng Thunderbird email client, v? g?i email t? Yahoo ??n Gmail. Khi b?m v?o View -> Message Source/Headers->All th? k?t qu? nh? sau (l?u ? ph?i ??c header t? d??i l?n): -- Received: from [203.160.1.52] by web56604.mail.re3.yahoo.com via HTTP; Wed, 16 Jul 2008 00:05:04 PDT X-Mailer: YahooMailRC/1042.40 YahooMailWebService/0.7.218 Date: Wed, 16 Jul 2008 00:05:04 -0700 (PDT) From: Son Tran Tuan <[email protected]> Reply-To: Son Tran Tuan <sonttk43dkcn at yahoo.com> Subject: test To: sontrantuan at gmail.com -- S? th?y g?i t? sonttk43dkcn at yahoo.com s? d?ng X-Mailer, IP l? 203.160.1.52 (ADSL c?a VDC) nh?n v?o l?c "Wed, 16 Jul 2008 00:05:04 -0700 (PDT)" b?i m?y ch? web56604.mail.re3.yahoo.com via HTTP. Th?ng tin ??y ?? ??n ??ch cu?i c?ng: Delivered-To: sontrantuan at gmail.com Received: by 10.90.93.2 with SMTP id q2cs56391agb; Wed, 16 Jul 2008 00:05:07 -0700 (PDT) Received: by 10.100.37.20 with SMTP id k20mr1406207ank.12.1216191906527; Wed, 16 Jul 2008 00:05:06 -0700 (PDT) Return-Path: <sonttk43dkcn at yahoo.com> Received: from web56604.mail.re3.yahoo.com (web56604.mail.re3.yahoo.com [66.196.97.48]) by mx.google.com with SMTP id 9si1204423yws.5.2008.07.16.00.05.05; Wed, 16 Jul 2008 00:05:06 -0700 (PDT) Received-SPF: pass (google.com: domain of sonttk43dkcn at yahoo.com designates 66.196.97.48 as permitted sender) client-ip=66.196.97.48; DomainKey-Status: good (test mode) Authentication-Results: mx.google.com; spf=pass (google.com: domain of sonttk43dkcn at yahoo.com designates 66.196.97.48 as permitted sender) smtp.mail=sonttk43dkcn at yahoo.com; domainkeys=pass (test mode) header.From=sonttk43dkcn at yahoo.com Received: (qmail 92825 invoked by uid 60001); 16 Jul 2008 07:05:05 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Received:X-Mailer:Date:From:Reply-To:Subject:To:Cc:MIME-Version:Content-Type:Message-ID; b=jBag9tru+8BIAeRDKpGD6BH4sU+Z/BnZm4Xd5h8oLmoPwdavu9G/08ZScZmSr9u8DzDLhYX0JTWiOm0ZA3TnRKtfQ1LmeJDO8HU+1CcNXC+chia+0dQHvumdiI6I2PvmL6V8cMYP5O09WXhtVqEL+kPEGyxTdR4CnfQc2dk+lcU=; Received: from [203.160.1.52] by web56604.mail.re3.yahoo.com via HTTP; Wed, 16 Jul 2008 00:05:04 PDT X-Mailer: YahooMailRC/1042.40 YahooMailWebService/0.7.218 Date: Wed, 16 Jul 2008 00:05:04 -0700 (PDT) From: Son Tran Tuan <[email protected]> Reply-To: Son Tran Tuan <sonttk43dkcn at yahoo.com> Subject: test To: sontrantuan at gmail.com Cc: son at netnam.vn Regards, Son. -- Hung Nguyen Vu wrote: > 2008/7/16 L? Xu?n Th?o <thaolx at gmail.com>: >> 2008/7/16 Hung Nguyen Vu <vuhung16plus+shape at gmail.com>: >> Kh?ng bi?t b?y gi? th? n?o. Tr??c kia khi t?i c?n hay d?ng yahoo, ??a >> ch? IP c?a m?y g?i lu?n c? trong header. > Mail t? mail.yahoo.com qua Hanoilug ML t?i gmail c?ng ch? hi?n th? n?y > > Received: from smtp.hanoilug.org (srv.hanoilug.org [210.245.61.199]) > > ngh?a l? kh?ng hi?n IP c?a ng??i g?i. > >
