On Mon, Dec 20, 1999 at 05:27:36PM -0800, Mike van der Velden wrote:
> Hello,
>
> Recently I was asked by a client to migrate their mail services off a
> legacy NT server onto a Sun workstation running Solaris 2.5.1, and I was
> asked to install qmail rather than use the default sendmail. I'm new to
> qmail, but I was able to use the FAQs and INSTALL docs to help me get
> going fairly swiftly. (although I wish the FAQ included info about the
> error message "warning: unable to open todo/xxx" -- that wasted a tonne
> of time!)
>
> About the environment. The server is a Sparc 4, running Solaris 2.5.1,
> and qmail 1.0.3. The clients are all Windoze 9x/NT, using either
> Netscape 4.7 or Pegasus Mail 3.1.2 as their MUA. Users use pop to send
> and retrieve mail from the server The firewall is configured to
> deliver incoming mail only to the mail server, and will only accept
> outgoing mail from the mailserver. Host masquerading has been set up so
> that all outgoing mail looks like it comes from the domain
> "company.com".
>
> There are two outstanding questions:
>
> First, when a user on a Windows client machine uses Netscape Mail 4.7 to
> send a message, the sender and return-path both say "[EMAIL PROTECTED]".
> However, when using Pegasus Mail 3.1.2 to send the same message, the
> return path says "[EMAIL PROTECTED]" while the sender's
> address still says "[EMAIL PROTECTED]". Several remote sites refuse to
> receive e-mail where the sender and return-path don't match. This
> address re-writing never happened when the mail server was Exchange
> running under NT, but it has become a problem since we switched to qmail
> running under Solaris.
As far as I know, Netscape Mail (and Outlook) use your configured "E-Mail
address" as both the "From:" header and as the MAIL FROM: (envelope sender)
during the SMTP conversation. Eudora (most likely) uses your username as the
Envelope sender, and qmail appends the hostname. Change
/var/qmail/control/me to the hostname that you want appended.
> Second, the firewall people have started to complain that ever since the
> switch-over to qmail, they are seeing a lot of "auth" packets to and
> from the qmail server to various remote sites. They want to know what
> is going on. What sort of extra packets does qmail send out? Are some
> of these "auth" communications initiated by outside systems?
"auth" is the ident protocol. It is described in RFC 1413 and RFC 931 (the
former obsoleting the latter). If your firewall people don't know what ident
is, you've got more serious problems than the hostname that appears on
outgoing mail.
--Adam
