Author: Nico Erfurth Date: To: Tom Marazita CC: exim-users Subject: Re: [Exim] Determining size of a message header.
Tom Marazita wrote: > Hi all,
>
> I am in need of a method of determining the size (number of characters)
> of a message header in a string expansion; something analogous
> to $message_body_size, but that operates on a specified header. I can't
> seem to find a simple way to do it though.
>
> Does anyone have any suggestions?
You can't get the length of the header, but you can CHECK on it, with a
regexp.
