[NTLUG:Discuss] Sendmail
Chris Cox
cjcox at acm.org
Thu Aug 1 10:24:41 CDT 2002
Michael Patrick wrote:
>Hi Doug,
>
>Sendmail is an SMTP server... it is for sending mail. To check mail requires a POP3 or IMAP4 server, such as qpopper or pop3d.
>
Also, as an MTA (Mail Transfer Agent) it can route to whatever delivery
agent you have... in other words,
it could send mail to local Linux clients sendmail which dump the mail
straight to a local mailbox.
But in general... nowadays people centralize mail delivery and use
things like pop and imap for access.
(like Michael said)
So... since you are a self proclaimed "newbie" I will ASSUME that your
mail is being received into local
mailboxes on a central host.... I would setup a pop server for maximum
compatibility with your
mail clients (of course if you know your clients will do imap ok... you
can do that). Your Linux distribution
should have a pop server (maybe multiple) that you can choose from to
install onto the server
that is holding the user's mail.
However, I'm assuming that the mail is going somewhere today, which it
may not be. If this is
a registered domain, you need to make sure that the mail exchanger
record (MX) for the domain
gets mail to your host. That host, since it will likely have a pop3
server will probably have
user accounts which map to the recipients of the mail... for simplicity,
we'll assume the
same id (e.g. mr_clean at spic-and-span.com mail goes into mr_clean's
mailbox on the
mail server).
If you do not have a registered domain... or if you have mail services
through your ISP, then
your mail could be going to a server managed by your ISP which likely
allows pop and
possibly imap (possibly with various "security conscious" variants).
I guess what I'm saying is that we REALLY need to know a LOT more detail
about
your architecture before we can whip up a simple solution (there are way
too many
variables at this point).
Chris
>
>Michael
>
>On Wed, Jul 31, 2002 at 10:45:50PM -0500, Douglas King wrote:
>
>
>>Have a problem... I have recently installed Sendmail on a RedHat 7.3
>>box. It is running Mailman on it as well. Mailman works fine, sends and
>>receives as it should...but Sendmail will allow a user to SEND a message
>>out, but will NOT ALLOW a user to check their respective mailbox on the
>>server.
>>
>>WARNING...I'm a newbie at this...so please go easy and explain the fix.
>>
>>Thanks
>>
>>
>
>
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