Sorry for the confusing message. Please be more detailed regarding the origin of the messages that have the "To:" header containing "undisclosed recipients:;"
If the message originates from a mailing list this can be the answer for the unusual header. > It's not the envelope, it's only the "To:" header modified, it's a filter > bypass technique. > >> Where is are you seeing this undisclosed recipient in the to field? In >> you client, or in your mail servers log files? >> >> >> On Tue, 2008-01-08 at 11:12 +0100, Info Neoblu wrote: >>> >>> > -----Messaggio originale----- >>> > Da: Shane Chrisp [mailto:[EMAIL PROTECTED] >>> > Inviato: martedì 8 gennaio 2008 11.00 >>> > A: toaster@shupp.org >>> > Oggetto: Re: [toaster] Info for send mail >>> > >>> > That sounds like a problem with the mail client rather than the >>> server. >>> > âUndisclosed Recipient:;â is pretty normal for mailouts from >>> clients >>> > such as outlook express etc. >>> > >>> This happens on different clients Outlook, Outlook Express, Thunderbird >>> .... with different versions. >>> >> >> > > >
