Linux-550访问被拒绝-直升机名称无效（请参阅RFC2821 4.1.1.1）
我试图通过Linux服务器发送电子邮件，但从未收到。我现在用的是油灰，我用的是Linux-550访问被拒绝-直升机名称无效（请参阅RFC2821 4.1.1.1）,linux,sendmail,php,Linux,Sendmail,Php,我试图通过Linux服务器发送电子邮件，但从未收到。我现在用的是油灰，我用的是 # php -r 'mail("*****@gmail.com","Test subject", "Test Message","From: *****@gmail.com");' 然后我去和你核对我的留言 cat /var/spool/mail/ 我得到了这个 ----- The following addresses had permanent fatal errors ----- <****@
# php -r 'mail("*****@gmail.com","Test subject", "Test Message","From: *****@gmail.com");'
cat /var/spool/mail/
----- The following addresses had permanent fatal errors -----
<****@gmail.com>
**(reason: 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1))**
----- Transcript of session follows -----
... while talking to domain.ca.:
>>> MAIL From:<*****@****> SIZE=568
<<< **550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)**
554 5.0.0 Service unavailable
# telnet localhost 25
Trying ::1...
telnet: connect to address ::1: Connection refused
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 *** ESMTP Sendmail 8.14.4/8.14.4; Fri, 27 Sep 2013 14:47:10 -0400
# ehlo localhost
250-****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-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
有人能帮我吗？我是linux和php mail新手如果是VPS或专用服务器，请尝试将主机名更改为可解析的名称，如server@mydomain.com具有相同的有效A记录 我发现下面的网站很有用
您的邮件服务器试图假装它是（比如）
example.comfoo.bar