Ask in news.admin.net-abuse.email and you can get really goodQuote:>How do I stop this people to keep doing this to my mail
Tsu Dho Nimh
"Y'know, I can *say* I'm Ming The Merciless, Emporer of Planet Mongo, but
unless I can produce a few legions of heavily-armed rocket ships, you're not
likely to take me seriously." Morely Dotes, 2001
We're running FreeBSD 2.2.2 here with an 8.8 sendmail as our mail server.
This acts as a POP server which windows client machines fetch e-mail from using
We're a relatively new site, and only recently have had internet access.
We're looking to pilot a scheme to give students e-mail accounts. Currently,
their accounts would be created purely for e-mail: no student should have any
need to log on to the server; it'd all be done with POP3 & SMTP.
There are a couple of questions that I could do with some help with:
1. We've got about 1200 students. Our mail server is running on a pentium
machine with lots of disk space. Are there any practical limitations to the
number of accounts we can create on this machine? Or can FreeBSD handle that
many user accounts without too much stress? Remember, most of the user base will
not be logging in to work on the machine, merely fetching their mail from it.
[I don't really think there ought to be a problem here: i'm afraid that I just
have a nagging doubt - i still tend to think of a PC running Unix as a 'small'
or 'toy' system. Please don't flame me for this - I 'd love to be proved wrong
in this respect]
2. Is it possible to configure an account or set of accounts to be unable to
send external mail? That is, we'd like the account "student_489" to only be able
to send e-mail to the domain "stbrn.ac.uk" (ie, here). If this is possible, how
is it done? Email would be dealt with using POP/SMTP only, not using any of the
unix mail clients.
I'd appreciate any help you could give me in this regard: If poss, could you
forward a copy of your reply to:
Thanks in advance.