Re: [exim] check_helo_slow?

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Author: Tony Finch
Date:  
To: David Woodhouse
CC: exim-users
Subject: Re: [exim] check_helo_slow?
On Mon, 10 Jan 2005, David Woodhouse wrote:
> On Sun, 2005-01-09 at 21:51 -0800, Marc Perkel wrote:
> >
> > deny    message = REJECTED - Bad HELO - IP address not allowed ($sender_helo_name)
> >       condition = ${if isip{$sender_helo_name} {true} {false} }

>
> That would only match raw IP addresses, which would have been rejected
> for being syntactically invalid anyway.


Actually, Exim's HELO name syntax checking is very lax and it's quite
happy with bare IP addresses, double dots, etc. The check above is very
effective and highly recommended.

Tony.
--
<fanf@???> <dot@???> http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}