Re: Very huge email service

[Leander Berwers <l.berwers@glasshouse.be>]

> >Speaking of mondo email systems, I was talking with a guy today who
> >mentioned that their server would max out at 64K users.  It was a Linux
> 
> I believe that is the limit of the UID space.  I assume you can hack
> something to increase it arbitrarily large.  But that would involve
> increasing the address space, which is not as simple as changing a flag
> somewhere and recompiling.  AKAIK, the address space is 16 bits which gives
> you up to 65536 UID's (plus root).  The "default" UID space on Debian is
> from 1000 to 29999.

Or ... you use a mail system which do not require a user account on the
system for each mail account! qmail and qpop are such mail systems and
work well with a large number of mail boxes.

Leander