Re: [exim] Mailing List Email without 'To:'

On Fri, 2010-01-29 at 15:02 +0000, Always Learning wrote:
> One of our Exim servers has rejected an Exim mailing list email because
> it had no 'To:' header.
>
> Should the mailing list always insert a To: header if one is missing ?

RFC 2822 says:
The only required header fields are the origination date field and
the originator address field(s). All other header fields are
syntactically optional.

So only the Date: and From: headers are required, the To: header is optional.

--
Chris