E-mail Server

E-mail Server

[Cloves Pereira Costa Jr]

Hi all...

First I want to apologize because English is not my native language.

I want to know your opinion in witch e-mail server is "better": Sendmail
or Postfix?

I want to know because I'll have to implement a e-mail server in my
company and I made some research and find that those two e-mail servers
are most used.

My minimum cenario is:
	- about 50 mail boxes
	- LDAP integrated
	- users quota
	- Anti-SPAM (obviously)
	- support to POP, IMAP and SMTP

I'm sorry if this seams a little newbie but my area is Security and I
don't know mutch about e-mail servers.

PS.: if someone knows a different e-mail server that do all those
things, please tell me.

Thx

[]s

Cloves Jr

Re: E-mail Server

[Glynn Clements]

Cloves Pereira Costa Jr wrote:

> First I want to apologize because English is not my native language.
> 
> I want to know your opinion in witch e-mail server is "better": Sendmail
> or Postfix?
> 
> I want to know because I'll have to implement a e-mail server in my
> company and I made some research and find that those two e-mail servers
> are most used.
> 
> My minimum cenario is:
> 	- about 50 mail boxes
> 	- LDAP integrated
> 	- users quota
> 	- Anti-SPAM (obviously)
> 	- support to POP, IMAP and SMTP

Sendmail and Postfix are SMTP servers. As such, they only form part of
the solution. You will need separate packages for POP, IMAP, LDAP,
spam filtering, etc.

I don't have any opinion on which one is better, as I've only ever
used sendmail (when I had to make this choice, it was sendmail versus
smail).

Whichever option you choose, spend time learning the software before
putting it into production use. Running a mail server isn't like
running a web server.

First, the contents of a web server are normally supposed to be
public, while email is normally considered confidential. Any security
flaws are potentially much more serious with email.

Second, a malfunctioning web server will only affect people who try to
use it, while a malfunctioning mail server risks inconveniencing a far
wider audience. You can get onto an anti-spam blacklist (or even
several of them) in minutes; getting off usually takes a lot longer.

-- 
Glynn Clements <glynn@gclements.plus.com>

Re: E-mail Server

[Adam T. Bowen]

Glynn Clements wrote:
> Cloves Pereira Costa Jr wrote:
>> I want to know your opinion in witch e-mail server is "better": Sendmail
>> or Postfix?
> 
> I don't have any opinion on which one is better, as I've only ever
> used sendmail (when I had to make this choice, it was sendmail versus
> smail).
> 
> Whichever option you choose, spend time learning the software before
> putting it into production use.

I agree with Glynn.  You should give both of these mail servers a try, 
and make a decision based on which one fulfils your requirements. 
Chances are both will, but in my experience, Sendmail is by far the most 
flexible, but at the same time it is one of the hardest to configure 
(although m4 config files have alleviated that to some degree).

> You can get onto an anti-spam blacklist (or even
> several of them) in minutes; getting off usually takes a lot longer.

Make sure you use the tools that are available for testing your mail 
server.  Relay checkers are available as both web based:

   http://www.abuse.net/relay.html

and telnet based:

   telnet rt.njabl.org 2500

If these report any problems, you should stop running the mail server 
immediately, fix the problem and then re-test.  As Glynn said, some 
blocklists are very hard to get off.  I have spent hours on the phone to 
AOL in the past (and this wasn't even because we were being used to 
spam, it was because of ill educated AOL web mail users, who we forward 
mail for from their web site, using the "This is spam" button as a way 
to delete mail), and I can still hear the loop of "Surfin' USA" in my 
mind [shudder].

Adam

Re: E-mail Server

[Beginner]

On 20 Feb 2008 at 17:54, Cloves Pereira Costa Jr wrote:

> Hi all...
...snip

> My minimum cenario is:
> 	- about 50 mail boxes
> 	- LDAP integrated
> 	- users quota
> 	- Anti-SPAM (obviously)
> 	- support to POP, IMAP and SMTP
> 
> I'm sorry if this seams a little newbie but my area is Security and I
> don't know mutch about e-mail servers.
> 
> PS.: if someone knows a different e-mail server that do all those
> things, please tell me.

I like Exim which, on Debian at least, comes with a number of add-on 
(SA-exim) easily installed with apt for spamassassin and courier 
(IMAP/POP3). I never use quotas or LDAP but I believe these are 
supported.

Another choice is Scalix, a drop-in replacement for MS Exchange and 
free!!

Re: E-mail Server

[Aslan Carlos]

[-- Attachment #1: Type: text/plain, Size: 2005 bytes --]

Hi Cloves, 
 
 I chose the Postfix, because is easily to maintain and configure.
I've been working with both, my opinion the Sendmail has many vantages
over postfix, but is not easy to configure one SMTP server with security
using sendmail, compile m4 macros to configuration works is too much
complicate when you are beginner.

So may should you try use the Postfix, it's more flexible to work and
have many add-on, and you may thing more documentation for build you
server with security and stability.

Postfix and Sendmail are MTA, not MRA, you will need chose one of all
daemon like Dovecot, Cyrus, Courier, try use Dovecot have easy
configuration and are in all of popular Linux dist.

My suggestion is build with Cyrus-Imapd it's more stable of all then and
have many tools to maintain and management the mailboxes.

Feel free to contact me directly I speak portuguese too. =)

best regards,
--
Aslan Carlos de M. Ramos



On Wed, 2008-02-20 at 17:54 -0300, Cloves Pereira Costa Jr wrote:
> Hi all...
> 
> First I want to apologize because English is not my native language.
> 
> I want to know your opinion in witch e-mail server is "better": Sendmail
> or Postfix?
> 
> I want to know because I'll have to implement a e-mail server in my
> company and I made some research and find that those two e-mail servers
> are most used.
> 
> My minimum cenario is:
> 	- about 50 mail boxes
> 	- LDAP integrated
> 	- users quota
> 	- Anti-SPAM (obviously)
> 	- support to POP, IMAP and SMTP
> 
> I'm sorry if this seams a little newbie but my area is Security and I
> don't know mutch about e-mail servers.
> 
> PS.: if someone knows a different e-mail server that do all those
> things, please tell me.
> 
> Thx
> 
> []s
> 
> Cloves Jr
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-admin" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


[-- Attachment #2: smime.p7s --]
[-- Type: application/x-pkcs7-signature, Size: 3249 bytes --]

Re: E-mail Server

[Cloves Pereira Costa Jr]

Hi all...

Thanks for all the answers... Is good to know that if I need some help I
have where to look, after all, that's the spirit of Linux...

[]s

Cloves Jr

Em Qui, 2008-02-21 às 11:08 -0300, Aslan Carlos escreveu:
> Hi Cloves, 
>  
>  I chose the Postfix, because is easily to maintain and configure.
> I've been working with both, my opinion the Sendmail has many vantages
> over postfix, but is not easy to configure one SMTP server with security
> using sendmail, compile m4 macros to configuration works is too much
> complicate when you are beginner.
> 
> So may should you try use the Postfix, it's more flexible to work and
> have many add-on, and you may thing more documentation for build you
> server with security and stability.
> 
> Postfix and Sendmail are MTA, not MRA, you will need chose one of all
> daemon like Dovecot, Cyrus, Courier, try use Dovecot have easy
> configuration and are in all of popular Linux dist.
> 
> My suggestion is build with Cyrus-Imapd it's more stable of all then and
> have many tools to maintain and management the mailboxes.
> 
> Feel free to contact me directly I speak portuguese too. =)
> 
> best regards,
> --
> Aslan Carlos de M. Ramos
> 
> 
> 
> On Wed, 2008-02-20 at 17:54 -0300, Cloves Pereira Costa Jr wrote:
> > Hi all...
> > 
> > First I want to apologize because English is not my native language.
> > 
> > I want to know your opinion in witch e-mail server is "better": Sendmail
> > or Postfix?
> > 
> > I want to know because I'll have to implement a e-mail server in my
> > company and I made some research and find that those two e-mail servers
> > are most used.
> > 
> > My minimum cenario is:
> > 	- about 50 mail boxes
> > 	- LDAP integrated
> > 	- users quota
> > 	- Anti-SPAM (obviously)
> > 	- support to POP, IMAP and SMTP
> > 
> > I'm sorry if this seams a little newbie but my area is Security and I
> > don't know mutch about e-mail servers.
> > 
> > PS.: if someone knows a different e-mail server that do all those
> > things, please tell me.
> > 
> > Thx
> > 
> > []s
> > 
> > Cloves Jr
> > 
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-admin" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

-
To unsubscribe from this list: send the line "unsubscribe linux-admin" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: E-mail Server

[Yuri Csapo]

Hi Cloves, no need to apologize for English not being your native 
language. That's true for billions of people... ;)

Você pode se desculpar por não falar inglês muito bem, mas não por não 
ter nascido falando ingês, né?

Abraço...

Cloves Pereira Costa Jr wrote:
>>>
>>> First I want to apologize because English is not my native language.

-- 
Yuri Csapo
Academic Computing & Networking
Colorado School of Mines
CT-256
Phone:  (303) 273-3503
Fax:      (303) 273-3475
Email:   ycsapo@mines.edu

Please use the following link to open a service request:
http://helpdesk.mines.edu
===========================================
With a PC, I always felt limited
by the software available.
On Unix, I am limited only by my knowledge.
--Peter J. Schoenster
-
To unsubscribe from this list: send the line "unsubscribe linux-admin" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: E-mail Server

[Chamith Kumarage]

Hi Cloves,

My recommendation is go for Qmail Server. You might have to struggle a
bit when setting up the server. But once you setup it perfectly, nothing
to worry about the stability. :)

Pop-server implementation and mail-box management can be easily done
with VPOPMail.

You can get all the required HOWTOs and Docs (from A-Z) from
http://www.lifewithqmail.org/
http://www.inter7.com/vpopmail/

Cheers!

~Chamith

 
On Wed, 2008-02-20 at 17:54 -0300, Cloves Pereira Costa Jr wrote: 
> Hi all...
> 
> First I want to apologize because English is not my native language.
> 
> I want to know your opinion in witch e-mail server is "better": Sendmail
> or Postfix?
> 
> I want to know because I'll have to implement a e-mail server in my
> company and I made some research and find that those two e-mail servers
> are most used.
> 
> My minimum cenario is:
> 	- about 50 mail boxes
> 	- LDAP integrated
> 	- users quota
> 	- Anti-SPAM (obviously)
> 	- support to POP, IMAP and SMTP
> 
> I'm sorry if this seams a little newbie but my area is Security and I
> don't know mutch about e-mail servers.
> 
> PS.: if someone knows a different e-mail server that do all those
> things, please tell me.
> 
> Thx
> 
> []s
> 
> Cloves Jr
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-admin" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
-- 
*** There's no place like ${HOME} ***

Re: E-mail Server

[Jeff Morse]

I have used both and Sendmail is my choice. I use dovecot for IMAP.

Cloves Pereira Costa Jr wrote:
> Hi all...
> 
> First I want to apologize because English is not my native language.
> 
> I want to know your opinion in witch e-mail server is "better": Sendmail
> or Postfix?
> 
> I want to know because I'll have to implement a e-mail server in my
> company and I made some research and find that those two e-mail servers
> are most used.
> 
> My minimum cenario is:
> 	- about 50 mail boxes
> 	- LDAP integrated
> 	- users quota
> 	- Anti-SPAM (obviously)
> 	- support to POP, IMAP and SMTP
> 
> I'm sorry if this seams a little newbie but my area is Security and I
> don't know mutch about e-mail servers.
> 
> PS.: if someone knows a different e-mail server that do all those
> things, please tell me.
> 
> Thx
> 
> []s
> 
> Cloves Jr
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-admin" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html