有哪位大虾遇到过两个域之间发信报556错误的

gallop

最近往一个域那里发信老是报：556 Cannot accept message from this email address 的错误，不知道怎么解决，对方为什么会不接受呢？
具体的日志如下:
Failed address: a@test1.com

--- Session Transcript ---
Mon 2008-10-13 18:03:18: [8417:8] Parsing message <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000029191.msg>
Mon 2008-10-13 18:03:18: [8417:8] *  From: a@test2.com
Mon 2008-10-13 18:03:18: [8417:8] *  To: a@test1.com
Mon 2008-10-13 18:03:18: [8417:8] *  Subject: test from test2
Mon 2008-10-13 18:03:18: [8417:8] *  Message-ID: <200810131803150938356@test2.com>
Mon 2008-10-13 18:03:19: [8417:8] Attempting SMTP connection to [test1.com]
Mon 2008-10-13 18:03:19: [8417:8] Resolving MX records for [test1.com] (DNS Server: 219.134.60.1)...
Mon 2008-10-13 18:03:21: [8417:8] *  P=010 S=000 D=test1.com TTL=(60) MX=[mail.test1.cn]
Mon 2008-10-13 18:03:21: [8417:8] Attempting SMTP connection to [mail.test1.cn:25]
Mon 2008-10-13 18:03:21: [8417:8] *  Cache hit on mail.test1.cn; IP = 219.134.60.1
Mon 2008-10-13 18:03:21: [8417:8] Waiting for socket connection...
Mon 2008-10-13 18:03:21: [8417:8] *  Connection established (10.10.10.1:3550 -> 219.134.60.1:25)
Mon 2008-10-13 18:03:21: [8417:8] Waiting for protocol to start...
Mon 2008-10-13 18:03:21: [8417:8] <-- 220 SMTP Proxy Server Ready
Mon 2008-10-13 18:03:21: [8417:8] --> EHLO test2.com
Mon 2008-10-13 18:03:22: [8417:8] <-- 250-ESMTP Server Ready
Mon 2008-10-13 18:03:22: [8417:8] <-- 250-SIZE 5242880
Mon 2008-10-13 18:03:22: [8417:8] <-- 250-DSN
Mon 2008-10-13 18:03:22: [8417:8] <-- 250-AUTH LOGIN
Mon 2008-10-13 18:03:22: [8417:8] <-- 250-AUTH=LOGIN
Mon 2008-10-13 18:03:22: [8417:8] <-- 250-STARTTLS
Mon 2008-10-13 18:03:22: [8417:8] <-- 250 TLS
Mon 2008-10-13 18:03:22: [8417:8] --> MAIL From:<a@test2.com> SIZE=2452
Mon 2008-10-13 18:03:22: [8417:8] <-- 556 Cannot accept message from this email address
Mon 2008-10-13 18:03:22: [8417:8] --> QUIT
--- End Transcript ---
: Message contains [1] file attachments

lwz_08

Mon 2008-10-13 18:03:22: [8417:8] <-- 556 Cannot accept message from this email address

八成是对方把你地址纳入黑名单了吧

gallop

两边都是MD的，而且都可以管理的，没有加黑名单，还有没有其他的可能呢~~