Re: [exim] Sending issue

On Wed, Sep 11, 2013 at 04:28:46PM -0600, The Doctor wrote:

> tcpudump gives me
>

>     C: RCPT TO: <Undisclosed-Recipient:;>
>     S: 501 <Undisclosed-Recipient:;>: "@" or "."
>     C: QUIT

The client is putting garbage into the message envelope. RFC 2822
group addresses:

    display-name ":" [ mailbox-list ] ";"

MUST NOT leak into the message envelope. In partucilar:

    To: Undisclosed-Recipient:;

is an empty list of addresses, not an address. See:

    http://tools.ietf.org/html/rfc2822#section-3.4

-- 
    Viktor.