On Thu, 22 Jan 1998, Daniel Ryde wrote:
> We are getting numerious rejects due to invalid characters in the HELO
> argument:
> 1998-01-22 08:17:24 rejected HELO: syntactically invalid argument(s): ma_pc.domain.se
>
> Unfortunaley Microsoft Mail for Windown 3.1x atomatically puts an
> underscore (_) in the host field (surprise? Nahhh. Is there any
> setting where you can change this? Nope!).
> So, is it possible to enable this character in the HELO argument?
Not at the moment, without changing the code. But there is an item on my
work list to do something about it. At the moment, you have to modify
line 1114 of smtp_in.c, which reads
if (!isalnum((uschar)*s) && *s != '.' && *s != '-')
Change the test for a bad character to whatever you want.
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