Re: [exim] no ehlo possible when sender IP has no hostname

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Author: Fred Viles
Date:  
To: exim-users
Subject: Re: [exim] no ehlo possible when sender IP has no hostname
On 24 Jul 2005 at 13:45, Roman Khassraf wrote about
    "Re: [exim] no ehlo possible when se":


| i have an acl_smtp_helo ACL :
| 
|   accept hosts = :
|   accept hosts = +relay_from_hosts
|   drop condition = ${if match{$sender_helo_name}{MY_IP}{yes}{no} }
|        message   = "Dropped spammer pretending to be us"
|   drop condition = ${if match{$sender_helo_name}{^[0-9]\.[0-9]\.[0-9]\.[0-9]}
| {yes}{no} }
|        message   = "Dropped IP-only or IP-starting helo"
|   accept


OK, that can't explain it.

|...
| but at hosts without a resolved hostname even sending "ehlo" without any
| arguments causes error 502 instead of error 501 Syntactically invalid EHLO
| argument(s)


Are you *sure* you are connecting to exim for this test? If exim is
capable of responding to EHLO with 502, I'm not finding where it is
done in the source code (4.52). What does the banner message show?

- Fred