LMTP AUTH with sendmail?

[Casper]

on the sendmail lmtp server in imapd.conf look for

lmtpproxy_authname: user
lmtpproxy_password: pwd

lmtpsocket: /spool/lmtp.socket


and on the imap add proxyusers.....


imapserver_password: pwd

proxy_authname: user


All in the manual.


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>
> Hi!
>
> I'm about to set up a Cyrus IMAP server machine and want to
> have several other machines running sendmail to deliver mail
> to the IMAP server using LMTP over TCP (btw: all machines are
> running Linux)
>
> This raises the question of authenticating the mail delivery
> machines to the IMAP server.
>
> I already have a setup running with "pre-authorization"
> (lmtpd option "-a") using the following configuration settings:
>
> In /etc/cyrus.conf on the IMAP server machine:
>
> SERVICES {
> [...]
>   lmtp          cmd="lmtpd -a" listen="lmtp" prefork=1
> [...]
> }
>
> In /etc/hosts.allow on the IMAP server machine:
> [...]
> lmtp: a.b.c.72, a.b.c.80, a.b.c.91
> [...]
>
> In /etc/hosts.deny on the IMAP server machine:
> [...]
> lmtp: ALL
> [...]
>
> In /etc/mail/sendmail.mc on the mail delivery machines:
> [...]
> define(`confLOCAL_MAILER', `cyrusv2')dnl
> define(`CYRUSV2_MAILER_ARGS', `TCP my.cyrus.server.tld lmtp')dnl
> [...]
>
>
> In order to improve security I'd rather use "real" authentication
> for the LMTP client against the LMTP server, but I have not found
> a single piece of documentation or example of how to do this with
> sendmail (I have found examples for postfix or exim, though)
>
> I know how to set up SMTP AUTH with sendmail (both as client
> and as server), but not LMTP AUTH (as client)
>
> Is real LMTP AUTH with sendmail possible at all?
> Has anyone already set up such a beast?
>
> I'd appreciate any hints or configuration examples!
>
> Thanks!
>
> - - andreas
>
> - --
> Andreas Haumer                     | mailto:andreas at xss.co.at
> *x Software + Systeme              | http://www.xss.co.at/
> Karmarschgasse 51/2/20             | Tel: +43-1-6060114-0
> A-1100 Vienna, Austria             | Fax: +43-1-6060114-71
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