LinuxQuestions.org
Register a domain and help support LQ
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 05-24-2004, 11:18 AM   #1
eeried
Member
 
Registered: Jan 2004
Distribution: Xubuntu Dapper - Debian Etch - Puppy Linux
Posts: 136

Rep: Reputation: 15
Question Are Fetchmaildaemon and Postfix necessary?


Hello,

I've just upgraded security on my Debian-based Libranet.
After downloading with apt-get upgrade, a few config questions popped up concerning Ssh, Postfix, and Fetchmaildaemon.

I take Ssh to be a program for mail encryption.

From what I've read on this forum, you don't seem to need Postfix or fetchmail unless you use your computer as a mailserver.

Is this correct?

Or do you need some kind of program to be able to get your mail anyway even if you use Mozilla or Thunderbird?



Thanks in advance for your help,
 
Old 05-24-2004, 12:01 PM   #2
DavidHayes
LQ Newbie
 
Registered: Jul 2001
Posts: 16

Rep: Reputation: 0
ssh is a secure verion of telnet nothing to do with email encryption.
You are correct in saying you only need postfix if you are running a mail server.
Fetchmail is used to fetch mail from a POP3 server so you may have a need for this if you download email from your ISP.
Hope this helps
Dave
 
Old 05-24-2004, 12:18 PM   #3
ToniT
Senior Member
 
Registered: Oct 2003
Location: Zurich, Switzerland
Distribution: Debian/unstable
Posts: 1,357

Rep: Reputation: 47
ssh is an acronym for secure shell. It is used to connect to your box from outside. It has nothing to do with mail.

Postfix is an MTA (Mail Transport Agent); it recieves from the internet and sends mail there. You can think it as a centralized place having all the mail-configuration in one place so every MUA (Mail User Agent, eg. mutt, pine, mozilla-mailnews, kmail, etc..) doesn't have to be configured separatedly; some MUAs can partially work as MTA:s (this is the way it is done in the windows world; One program tries to do everything, and does everything poorly).

fetchmail is a tool that fetches mail. Especially it fetches mail from other imap or pop accounts and passes them to local MTA, as if they were send here in the first place.

One part missing from the puzzle is a MDA (Mail delivery agent). This is an optional part. MDA (like procmail or mailfilter) can be used to postprocess your mail to be filtered to certain folders with arbitrary criteria; this processing can be done in co-operation with some spam analyzing tools like spamassassin and/or bogofilter.
 
Old 05-24-2004, 12:24 PM   #4
ToniT
Senior Member
 
Registered: Oct 2003
Location: Zurich, Switzerland
Distribution: Debian/unstable
Posts: 1,357

Rep: Reputation: 47
You do need a MTA to recieve mail eg. from your system, cron scripts, other users and that sending mail from arbitrary program (eg. cvs sends mail on new commits if configured so, and mdadm sends mail if one of your HDs in your raid-array begings to malfunction.)

Mail is quite fundamental part of the messaging system, even if mail is send only locally. (thus postfix is quite heavyduty tool for only local delivery; a program like nullmailer might be more approriate).
 
Old 05-24-2004, 12:34 PM   #5
ToniT
Senior Member
 
Registered: Oct 2003
Location: Zurich, Switzerland
Distribution: Debian/unstable
Posts: 1,357

Rep: Reputation: 47
Well.. it seems that nullmailer won't deliver mail locally; esmtp does it with procmail.

Phaah.. atleast exim4 is trivial to configure to do only local delivery and send outgoing mail to smarthost, possibly with address rewriting. Maybe postfix is not much worse.
 
Old 05-24-2004, 02:50 PM   #6
eeried
Member
 
Registered: Jan 2004
Distribution: Xubuntu Dapper - Debian Etch - Puppy Linux
Posts: 136

Original Poster
Rep: Reputation: 15
Thanks you dave and TonyT for your replies!

I didn't reconfigure fetchmail after upgrading -- should I -- or would the default config be still valid (that would be the config shipped with my distro version)?
 
Old 05-24-2004, 10:51 PM   #7
ToniT
Senior Member
 
Registered: Oct 2003
Location: Zurich, Switzerland
Distribution: Debian/unstable
Posts: 1,357

Rep: Reputation: 47
The default config in fetchmail probably does nothing. The usage of fetchmail is to fetch mail from one or more of your pop/imap accounts (provided by your isp or similar); if not explicitly configured, it uses no accounts.
 
Old 05-25-2004, 04:27 AM   #8
eeried
Member
 
Registered: Jan 2004
Distribution: Xubuntu Dapper - Debian Etch - Puppy Linux
Posts: 136

Original Poster
Rep: Reputation: 15
Well, my email (Mozilla) works very well, so I suppose the config file first produced when I configured Libranet ppp is still valid.

Cheers
 
Old 05-25-2004, 09:44 AM   #9
ToniT
Senior Member
 
Registered: Oct 2003
Location: Zurich, Switzerland
Distribution: Debian/unstable
Posts: 1,357

Rep: Reputation: 47
Put you described where your pop/imap account is for your mozilla, didn't you? In that case, mozilla is doing the work of fetchmail for one user without passing the mail to any MDA:s.
 
Old 05-25-2004, 01:01 PM   #10
eeried
Member
 
Registered: Jan 2004
Distribution: Xubuntu Dapper - Debian Etch - Puppy Linux
Posts: 136

Original Poster
Rep: Reputation: 15
I'm not sure I understand your question, ToniT.

I configured Libranet PPP while installing Libranet (Libranet being my Linux distro). It was very easy. It must have been after package installation but definitly before I launched Mozilla for the first time (and i've installed a new version).

Cheers
 
Old 05-25-2004, 03:31 PM   #11
ToniT
Senior Member
 
Registered: Oct 2003
Location: Zurich, Switzerland
Distribution: Debian/unstable
Posts: 1,357

Rep: Reputation: 47
Just saying that is your mail delivered to /var/mail/username, or is it read locally by mozilla.
 
Old 05-27-2004, 08:09 AM   #12
eeried
Member
 
Registered: Jan 2004
Distribution: Xubuntu Dapper - Debian Etch - Puppy Linux
Posts: 136

Original Poster
Rep: Reputation: 15
Well, my /var/mail dir's got one 10KB file in it, called "nobody".

I wouldn't think the mail's delivered to that dir then, what do you reckon?

Cheers,
 
Old 05-27-2004, 09:49 AM   #13
ToniT
Senior Member
 
Registered: Oct 2003
Location: Zurich, Switzerland
Distribution: Debian/unstable
Posts: 1,357

Rep: Reputation: 47
So, what I'm saying, that you *have* configured mozilla, and it reads maail by it's own.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Postfix send mail problem(In RH9, kernal 2.4.20, postfix 2.1.5) minor Linux - General 4 07-11-2005 10:12 PM
Postfix help IchBin Linux - Newbie 5 06-08-2005 12:35 PM
can't start postfix ./postfix status error jules_fraser Linux - Software 3 12-06-2003 07:33 PM
Postfix help garth_s Linux - Software 3 07-18-2003 11:13 AM
move postfix mails from server to another postfix server onetwo Linux - Software 2 03-18-2003 03:22 PM


All times are GMT -5. The time now is 10:17 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration