[ILUG] List of questions ...

[Lars Hecking]

> 1. Sendmail 8.9.1, running on solaris 7, no relaying, there's an outside
> user, with his own dial in ISP and email, wants to have his mail appear as
> if it's from our server (domain). So he could do this if he used our
> machine as his SMTP server, but that would mean allowing relaying for his
> ISP's IP range, which I don;t wanna do. Is there a way to allow relaying
> by user??

 /usr/lib/mail/README

 FEATURE(access_db), maybe combined with one or more of the other relay_*
 features. The problem here is that relaying permission based on MAIL FROM:
 is open to spoofing, so I'd combine it with some sort of IP based access
 control. Simple enough if the user dials in from a static IP, a bit more
 difficult when dynamic IP's are involved (access_db allows network addresses
 and IP addresses). Maybe take a look at tcp_wrappers (but then you'll have
 to compile your own sendmail).

 Another option is "POP before SMTP", but I don't know of any patches/setups
 sendmail. Basically, the user dials in to retrieve his/her mail through POP,
 and this triggers a rebuild of the MTA access database to allow this user
 SMTP access. There is a timeout, of course. And I'd think really hard
 before opening a POP server to the Net ...

 Check out the postfix-users mailing list archive at www.postfix.org to see
 how this orks with postfix (to get an idea). Also, search for AntiSpam
 on freshmeat.

> 2. What's the best "Office Suite" for unix? Some compatible with ...
> them!!
 
 Can't say which one the best is, as I don't use any office type apps,
 but most ppl here seem to get on ok with StarOffice.

> 3. And, finally, emulator for unix? It should run nicely on an Ultra 5.
 
 Emulating what?

 Nothing runs nicely on an Ultra 5, unless you throw buckets of RAM at it.