Sendmail和Gmail

Question

我试着用sendmail发送电子邮件。我遵循了这个方法：http://linuxconfig.org/configuring-gmail-as-sendmail-email-relay

我试图通过控制台发送电子邮件：

echo "Just testing my sendmail gmail relay" | mail -v -s "Sendmail gmail Relay - New Server" user@gmailcom

命令的输出是：

WARNING: local host name (server01) is not qualified; see cf/README: WHO AM I?
user@gmail.com... Connecting to [127.0.0.1] via relay...
220 server01 ESMTP Sendmail 8.14.4/8.14.4; Thu, 10 Dec 2015 18:05:36 -0200
>>> EHLO server01
250-server01 Hello server1 [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-DELIVERBY
250 HELP
>>> MAIL From:<root@server01> SIZE=279
250 2.1.0 <root@server01>... Sender ok
>>> RCPT To:<user@gmail.com>
>>> DATA
250 2.1.5 <user@gmail.com>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
250 2.0.0 tBAK5aGc015664 Message accepted for delivery
user@gmail.com... Sent (tBAK5aGc015664 Message accepted for delivery)
Closing connection to [127.0.0.1]
>>> QUIT

221.0.0 server01关闭连接，但电子邮件从未到达.你们能帮帮我吗？

日志：

Dec 10 19:03:31 server01 sendmail[16310]: tBAL3Uua016310: from=root, size=279, class=0, nrcpts=1, msgid=<201512102103.tBAL3Uua016310@server01>, relay=root@localhost
Dec 10 19:03:31 server01 sendmail[16311]: tBAL3VCu016311: from=<root@server01>, size=524, class=0, nrcpts=1, msgid=<201512102103.tBAL3Uua016310@server01>, proto=ESMTP, daemon=MTA, relay=corp-poa-pabx1 [127.0.0.1]
Dec 10 19:03:31 server01 sendmail[16310]: tBAL3Uua016310: to=user@gmail.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=30279, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (tBAL3VCu016311 Message accepted for delivery)
Dec 10 19:03:32 server01 sendmail[16313]: STARTTLS=client, relay=gmail-smtp-msa.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-AES128-GCM-SHA256, bits=128/128
Dec 10 19:03:33 server01 sendmail[16313]: tBAL3VCu016311: to=<user@gmail.com>, ctladdr=<root@server01> (0/0), delay=00:00:02, xdelay=00:00:02, mailer=relay, pri=120524, relay=gmail-smtp-msa.l.google.com. [64.233.190.108], dsn=5.0.0, stat=Service unavailable
Dec 10 19:03:33 server01 sendmail[16313]: tBAL3VCu016311: tBAL3XCu016313: DSN: Service unavailable
Dec 10 19:03:33 server01 sendmail[16313]: tBAL3XCu016313: to=<root@server01>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31757, dsn=2.0.0, stat=Sent

提前谢谢..。

Answer 1

发送邮件-调试传出SMTP会话

Gmail拒绝接受你的电子邮件。

12月10日19:03:33 server01 sendmail16313：tBAL3VCu016311: to=user@gmail.com，ctladdr=root@server01 (0/0)，delay=00:00:02，xdelay=00:00:02，mailer=relay，pri=120524，中继=gmail-smtp-msa.google.com。64.233.190.108，dsn=5.0.0，stat=Service不可用

作为root用户，执行下面的命令以在详细模式下发送测试消息

(您将看到SMTP会话记录)：

(echo Subject: test; echo; echo test)|/usr/sbin/sendmail -Am -i -v user@gmail.com

您可以将-d60.5添加到sendmail命令行选项(在收件人地址之前)以跟踪地图/数据库查找，包括authinfo查找(搜索SMTP AUTH的密码)。

Answer 2

向gmail、yahoo、msn等大型服务器发送电子邮件可能很棘手，因为通过它们的反垃圾邮件保护要求所有的信任都处于完美状态。

您需要检查以下内容：

1. 使用解析为您的IP的实际域作为系统的主机名。因此，您应该使用server01而不是your-company.com
2. 请确保您的IP配置了PTR记录以解析到用于发送电子邮件(your-company.com)的相同域。
3. 确保你得到了配置SPF DNS记录 for your-company.com
4. 确保您的使DKIM工作，加密唱歌从您的服务器的每一封电子邮件。

这些步骤应该足以让你的电子邮件真正到达gmail。