Re: [exim] Some Outlook / Express not sending authentication…

On 24 Feb 2010, at 05:51, Jaco Meintjes wrote:

> Hey Guys, I've got a strange one: Some of our machines running Outlook / Outlook Express looks like they're simply not sending authentication to Exim (and it's doing this on about 40% of the Outlook users). For example on one of these machines I decided to load Here's a log
> example:
>
> 2010-02-23 12:46:45 H=dsl-245-216-168.telkomadsl.co.za (RuanVanWykPC)
> [41.245.216.168] F=<ruanvipexp@???> rejected RCPT
> <ruanvipexp@???>: Invalid HELO (RuanVanWykPC).

Given this log message, I would assume that it's nothing to do with your authentication setup.

At a guess, I would say you've got an ACL rejecting at RCPT time anyone who doesn't connect with a proper HELO name? And that you've not excluded from this test anyone who has authenticated?

Simon