what header should i send to build webmailer?

[Xuefer]

i'm writing webpage that allow my registered users to send email other registered users
i want the mail send as if it was send from the user his/her own email
is it possible?
seems that some mail server do strict check to mail headers

so does anyone know the best way to do what i wanna.

[jatar_k]

I know in php you can add the From: and Reply-To: header params, would that be enough?

[Xuefer]

maybe only who experience can answer this thread.
it true i "may" send "From:" and "Reply-To:" header
but i said, "some mail server do strict check to mail headers"

i've ever tried "From: [e-mail]" and let "Reply-To: [e-mail]"

however, still some damn server reject it

so, i want to know if somebody do the same work as me, and how do u manage it.

[hakre]

hi Xuefer

set the Return-Path header to the users email and if the recievers mailbox produces an error (full, no valid user etc.) the user will get the answer, not the site admin / mail script admin.

[nosanity]

Xuefer,

I have experienced the problem you are talking about, and my messages stoped bouncing when I added the Return-Path header. This might fix your problem. I cannot think of any other header that you could add with the e-mail address in it.

noSanity

[Xuefer]

thank nosanity & hakre & jatar_k

i've tried Return-Path recently. but not sure about the effect

my example was "from [e-mail] to [e-mail]"
but how if i change it into "from [e-mail] to [e-mail]"?
in other word, it's the same email provider

seems all u said is the only way, nothing more i can do about it.

[Allen]

Isn't there a flag you can use in sendmail to force a different from address?

Allen

[Xuefer]

what i meant "from" is "send for"
not the mail header "From: ..." :P