有关linux下mail的问题

sihouzhao

我在linux 下写了个脚本。如果有问题会像指定的邮箱发邮件（公司自己搭建的邮箱，用的是postfix）,
脚本写的是
mail -s "ERROR" user@domain.com < error.log
但是发不出去，如果收件人改成qq,163或者别的就可以
我查看var/log/maillog
------------------------
Oct 21 11:40:25 localhost sendmail[14469]: r9L3eOnq014469: to=zhaozhanwei@domain.com, ctladdr=www (500/500), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=30790, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (r9L3ePhj014471 Message accepted for delivery)
Oct 21 11:41:44 localhost sendmail[14423]: r9L3dgR9014421: to=<zhaozhanwei@dnspod-vip2.mydnspod.net>, ctladdr=<www@localhost.localdomain> (500/500), delay=00:02:01, xdelay=00:02:01, mailer=esmtp, pri=120918, relay=dnspod-vip2.mydnspod.net. [54.248.34.220], dsn=4.0.0, stat=Deferred: Connection timed out with dnspod-vip2.mydnspod.net.
Oct 21 11:41:58 localhost sendmail[14577]: r9L3fwDs014577: from=www, size=786, class=0, nrcpts=1, msgid=<62c35d5570fb1870ab7af79a5ff39cb3@192.168.2.124>, relay=www@localhost
Oct 21 11:41:58 localhost sendmail[14578]: r9L3fwv8014578: from=<www@localhost.localdomain>, size=898, class=0, nrcpts=1, msgid=<62c35d5570fb1870ab7af79a5ff39cb3@192.168.2.124>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
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然后我nslookup是能看到我们邮箱的mx记录

这个是什么问题啊，，