Re: [Exim] Exchange, HELO and underscores

At 16:01 -0400 2003/06/26, Walt Reed wrote:
>richard.halln Thu, Jun 26, 2003 at 05:49:34PM +0100, Richard.Hall said:
>> Yes, I know it's an old chestnut, but I still have to fight this battle
>> occasionally. This time the opposition is resisting, and I need chapter
>> and verse, moral support, advice, and anything else that's going.
>>
>> I'm running Exim 4.12 on Solaris 8. A misconfigured Exchange server is
>> sending me a HELO name with an underscore in it.
>
>Well, this is kind of a tough issue when you look into it deeper. The
>older versions of the SMTP standards also state that a server must not
>reject email based on HELO data. The issue is how long do you give them
>to be compliant with newer standards?

I do not understand what you mean here: they (the ones sending _ in
the HELO) are not even compliant with the old standard.

Giuliano