Sendmail通过LMTP发送空白收件人

标题非常多。本地邮件通过LMTP工作正常，但非本地邮件（虚拟主机）正在挣扎。我尽可能提供了尽可能多的信息，试图保持相关性。我不知道这里出了什么问题。

我已经validation的事情：

example.com在{VirtHost}
它试图通过我的邮件发送，而不是local （尽pipelocal正在向LMTP发送，并且工作正常）。通过日志进行validation并仅更改用于虚拟邮件的LMTP套接字（请参见下文）。

邮件规范：

 Mdovecot, P=[IPC], F=SXmnz9, S=EnvFromSMTP/HdrFromL, R=EnvToSMTP/HdrToL, E=\r\n, T=DNS/RFC822/SMTP, A=FILE /var/run/dovecot/lmtp

SMTP会话：

 $ telnet localhost 25 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 220 mail.example.com ESMTP Sendmail; Mon, 31 Oct 2011 23:29:54 GMT EHLO localhost MAIL FROM: [email protected] RCPT TO: [email protected] DATA To: [email protected] From: [email protected] Subject: Hello world! Hello there, everyone! . quit 250-mail.example.com Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-DELIVERBY 250 HELP 250 2.1.0 [email protected]... Sender ok 250 2.1.5 [email protected]... Recipient ok 354 Enter mail, end with "." on a line by itself 250 2.0.0 p9VNTswi016356 Message accepted for delivery 221 2.0.0 mail.example.com closing connection Connection closed by foreign host.

结果LMTP会话：

 # socat -v UNIX-LISTEN:lmtp-socat UNIX-CLIENT:lmtp < 220 mail.example.com Dovecot LMTP ready\r > LHLO mail.example.com\r < 250-mail.example.com\r < 250-8BITMIME\r < 250-ENHANCEDSTATUSCODES\r < 250 PIPELINING\r > MAIL From:<[email protected]>\r < 250 2.1.0 OK\r > RCPT To:<>\r > DATA\r < 550 5.1.1 <> User doesn't exist: \r < 554 5.5.1 No valid recipients\r > RSET\r < 250 2.0.0 OK\r > QUIT\r < 221 2.0.0 Client quit\r

Sendmail地址转换（我认为这是内部处理的工作方式，有人纠正我，如果没有，我会解决这个问题）：

 $ sendmail -bt ADDRESS TEST MODE (ruleset 3 NOT automatically invoked) Enter <ruleset> <address> > 0,3,EnvToSMTP [email protected] parse input: mscharley @ example . com Parse0 input: mscharley @ example . com Parse0 returns: mscharley @ example . com ParseLocal input: mscharley @ example . com ParseLocal returns: mscharley @ example . com Parse1 input: mscharley @ example . com Parse1 returns: $# local $: mscharley @ example . com parse returns: $# local $: mscharley @ example . com canonify input: $# local $: mscharley @ example . com canonify returns: $# local $: mscharley @ example . com EnvToSMTP input: $# local $: mscharley @ example . com EnvToSMTP returns: $# local $: mscharley @ example . com

有时你只需要input一切，理清自己的想法。

这是由mailertable的空白域引起的，即：

 example.com dovecot:

将其更改为以下内容完全可以解决问题：

 example.com dovecot:example.com