Re: Does reject_non_fqdn_helo_hostname violate RFC?

2017-08-02 Thread Dan Schwartz
n_fqdn_helo_hostname, postfix >> violates that MUST NOT. Is my interpretation correct? If that is so, >> perhaps docs should be updated pointing that out. I very well understand >> why people may want to use that option (I use it myself). It's just a >> matter of the

Re: Does reject_non_fqdn_helo_hostname violate RFC?

2017-08-02 Thread Dan Schwartz
>From RFC 1123 - 5.2.5 HELO Command: RFC-821 Section 3.5 The sender-SMTP MUST ensure that the parameter in a HELO command is a valid principal host domain name for the client host. As a result, the receiver-SMTP will