On 6/7/2013 5:46 AM, Nikolas Kallis wrote: > Postfix has a bug in it where argument 'reject_non_fqdn_helo_hostname' > causes Postfix to reject mail from a client who is using an address > literal as their 'helo' command. > > This in breach of RFC 2821 under section 4.1.1.1.
You can also enforce precisely the restrictions you desire using check_helo_access and a PCRE or REGEXP table. See: http://www.postfix.org/postconf.5.html http://www.postfix.org/pcre_table.5.html http://www.postfix.org/regexp_table.5.html You didn't describe the "spam problem" you are attempting to solve. Would you like assistance with that, or was this thread strictly about reporting a bug against reject_non_fqdn_helo_hostname? -- Stan