如何保护我的邮件服务器使用垃圾邮件发送者向 yahoomail、gmail 等发送电子邮件
我的邮件服务器现在被 gmail 阻止了。已经设置为阻止所有这些，但仍然受到垃圾邮件发送者的攻击
以下日志邮件：-
Jun 24 03:29:26 abcd sendmail[13373]: q5NHV7Jm001938: to=<cornchopsunshady@yahoo.com>, ctladdr=<xxx@abcd.com> (525/528), delay=02:58:10, xdelay=00:00:02, mailer=esmtp, pri=3212216, relay=mta7.am0.yahoodns.net. [67.195.168.230], dsn=431, stat=Deferred: 452 Too many recipients
我非常感谢您的建议和帮助。
为日志邮件编辑：
Jun 24 03:29:06 abcd sendmail[13371]: q5NKT6s1013371: from='<www-data@crazyhorse.abcd.com>', size=2340, class=0, nrcpts=0,proto=ESMTP, daemon=MTA, relay=myISP.com
jun 24 03:29:06 abcd sendmail[13372]:q5NKT6wz013372: <www-data@abcd.com>.. User unknown
Jun 24 03:29:06 abcd sendmail[13372]:q5NKT6wZ013372: from=<>, size=3324, class=0,nrcpts, proto=ESMTP, daemon=MTA, relay=myISP.com
jun 24 03:29:10 abcd sendmail[13373]: grew WorkList for /var/spool/mqueue to 2000
jun 24 03:29:12 abcd sendmail[13373]: grew Worklist for …