Topic: POP_before_SMTP relay control?...

[Stan Winiecki]

My company's previous e-mail server was a Netscape Messaging Server 2 on Novell platform, which is a wide-open relay.
As a result our server made it's way to the ORBS black list, and the server itself got clogged by some 40,000 messages to process...
When I joined the company I've shut down the Novell server completely and - after a tip from Charlie Brady (thanx, thanx thanx!!! ) decided to put an e-smith server to work.
Now I'm happy, and the spammers are unhappy
Nevertheless I would like to make it possible for the employees to not only read (via POP3) but also SEND messages while at home or 'on the move'. A majority of them use our national telecom company's dialup services, so in theory I could allow relaying from their addresses, but this would leave me vulnerable to local spammers also using that dialup operator.
In the e-smith documentation I didn't find any info on POP before SMTP option, which would be a natural solution here.
Has anyone tried it on an e-smith?
Or am I missing something?...

[Charlie Brady]

Stan Winiecki wrote:

> In the e-smith documentation I
> didn't find any info on POP before SMTP option, which would be
> a natural solution here. Has anyone tried it on an e-smith? ....

The natural places to ask your question are the developers mailing list (devinfo@lists.e-smith.org) and the Advanced Forum. As far as I know, nobody has done it, and it would be a non-trivial change.

It's strictly not a necessary change - all ISPs that I know of have an SMTP server which is accessible to their dialup customers - your roaming workers should just use the local SMTP server for outgoing mail.

Nevertheless, POP before SMTP (or authenticated SMTP) is on our desired features list.

Regards

Charlie

[Stan Winiecki]

First, thanks for the answer
I've put the question here, because the matter was mentioned several times on this forum.

|It's strictly not a necessary change - all ISPs that I know of
|have an SMTP server which is accessible to their dialup
|customers - your roaming workers should just use the local
|SMTP server for outgoing mail.

Well, in Poland we have (basically) one monopolistic Telecom company, and of course a bunch of commercial ISPs.
The ISPs offer the use of their SMTP server (although a majority of them require the sender domain name to be the one hosted by the ISP, so farewell to office-mail-from-home...). They charge a fee however for a dialup account in addition to a normal telephone charge.
On the other hand the Telecom company offers a "free" Internet access (via modem or ISDN). "Free" means no monthly fee of any sort, only the time you spend online charged as an ordinary local call. This is the most popular way of connecting to the 'net at home in Poland. The disadvantage is, that they don't offer anything more (apart from two DNS servers...).

|Nevertheless, POP before SMTP (or authenticated SMTP) is on
|our desired features list.

Happy to hear that I am not a Linux guru, so I wouldn't like to tamper with the qmail's setup in the e-smith server too much, but I still feel tempted to put up another machine with a second e-smith for experimenting ) Any advice of what I might try? Bruce's 'relay-ctrl' perheaps?...

All the best
Stan