The original idea was the constellation of 2 XMail servers:

X1 ---- smtpfwd --> x2

X1 could use AFTER_RCPT_TO to query X2 via control protocol, if the
user exists before forwarding. The most elegant way to solve this,
would be on SMTP protocol level.=20

There is also the fact of reducing bounced mails and notificatons
to a minimum. Especially when the next virus attack swaps over ..

--Harald



> -----Urspr=FCngliche Nachricht-----
> Von: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Im Auftrag von Davide Libenzi
> Gesendet: Dienstag, 3. Februar 2004 20:51
> An: XMail mailing list
> Betreff: [xmail] Re: AW: Re: AW: Re: AW: Re: AW: Re: SMTP=20
> Dialog Filter Hooks
>=20
>=20
> On Tue, 3 Feb 2004, Harald Schneider wrote:
>=20
> > I see .. reading incoming DATA (including the header) and passing=20
> > control to an extenal thread while buiffers are still=20
> receiving can be=20
> > tricky. YOu're right. this one should be skipped and filtes should=20
> > generally be implemented after each server reply, except data:
> >=20
> > EHLO
> >  --> AFTER_EHLO
> > MAIL FROM: ...
> >  --> AFTER_MAIL_FROM
> > RCPT TO: ...
> >  --> AFTER_RCPT_TO
> > DATA
> > From: ...
> > To: ...
> > ..
> > ..
> > ..
> >=20
> > Genrally, filters must not consume more time than a return from a=20
> > subroutine, which checks if a filter is plugged in. Filters should=20
> > also be able to overwrite XMail's resonses.
> >=20
> > Davide, what do you think about that ?
>=20
> Honestly, I do not like it becuase I think it does not buy=20
> enough to us=20
> to balance the intrisic "crappyness" of running external=20
> commands at SMTP=20
> level. We do have filters, and IMO this should be enough.=20
> Repeat me again=20
> what this does buy to us ...
>=20
>=20
>=20
> - Davide
>=20
>=20
> -
> To unsubscribe from this list: send the line "unsubscribe=20
> xmail" in the body of a message to [EMAIL PROTECTED]
> For general help: send the line "help" in the body of a=20
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>=20

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