Hi everybody.

In our company we're migrating from MS AD and Exchange Server to linux ubuntu with ldap, postfix and courier and we're stuck with this problems.

First: We need to configurate postfix to send an automatic repply when we send a mail.

Second: We need to forward all the mails to aa audit server (for security reasons).

Third: We need to migrate the CA of every user to ldap because we need to user the "self signed mails".

we exhausted all possible ideas and now we are stuck with those problems.

Anybody have an idea...??

Thanks.

Fedora has a well developed server version with easy graphical tools. When you do the install, select server and mail server from its options.

IMHO, fedora has a better server then ubuntu does. You should be able to configure the fedora mail server to perform these functions.

Use evolution as your email client in ubuntu. Its a bit more advanced then thunderbird.

Thanks mdlinuxwolf but we have bad experiences with Fedora. That was the motive why we migrate to Microsoft.

... and why are you now moving away again? A simple SMTP/POP server combination is only a portion of what Exchange provides, and if you need that, then you should buy that.

Hi sundialsvcs, unfortunately it's not my decision

Are you prepared to describe those bad experiences in more detail? If you aren't, I don't think that anyone will really be able to help you get around whatever the problems were (assuming that there are ways around them).

So, what's the thread about if you can't take a decision to change anything? If someone else is likely to take the decision, what do they want, what are their perspectives (if, for example, they believe that Linux is bad, Linux is useless for everything because of this bad experience with Fedora, which may or may not have been a good choice for what was required, then, unless that attitude can be changed, it is really useless discussing the detail of the mail server). Or maybe it all failed due to lack of a responsive support system, and then you'd have to say, if you were going to go for it, you would need support. not necessarily as in 'really need support' but, more likely, 'need support to overcome the political objections'.

I don't know, but more detail is needed...

SuSE also has a good server and a nonconflict agreement with Microsoft. If you're in a mixed network or if you want the option of tech support, its foolish not to give it a try.

Open SuSE is the free version, but updates stop working after a grace period.

If you're going with Ubuntu, make sure you get the LTS (Long Term Support) server version.

Assuming this is a serious work server, do NOT use Fedora, its RedHat's R&D unstable distro. Nothing wrong with that as such, but definitely not suitable.
The RedHat serious distro is RHEL (RedHat Enterprise Linux), which you have to pay for to get support & updates.
If you are competent enough to do your own support, you can get Centos ( a free rebuild of RHEL).
Includes updates, but no support.

You can find articles for all of these on Wikipedia, which may help.

Have you heard of Zimbra? It's opensource and feature rich and uses Postfix as the MTA. Somebody previously in this forum also mentioned this.

http://www.zimbra.com/

They also have a migration wizard for moving from Exchange:

http://www.zimbra.com/docs/shared/la...llation_guide/

Thanks!

1. Your first requirement is not very clear. Are you looking for Autoresponder? If not, then what exactly?

2. Auditing is possible with sender_bcc:

http://postfixmail.com/blog/index.ph...outgoing-mail/
http://postfixmail.com/blog/index.ph...incoming-mail/

3. As for the AD migration part, you also need to know whether your users/clients are also shifting to Linux or staying with windows or mixed. May be you can’t just use OpenLDAP in replacement for AD. For Windows clients, you will need to use SAMBA + OpenLDAP.

Ubuntu Server 7.10: OpenLDAP + SAMBA Domain Controller
http://ubuntuforums.org/showthread.php?t=640760

As for openLDAP, 389 Directory Server can be a good choice:

389 Directory Server

Here is a tutorial on migration:
http://sagadudu.blogspot.de/2011/07/...ory-using.html


And finally the discussion on this link would be very useful for you I guess. Please read the comments on the page below:

http://linsec.ca/blog/2008/01/22/con...sambaopenldap/

All the best!

Still, it might be worth looking at SuSE just to see what it does. I haven't messed around with Ubuntu's server.

SuSE's major selling point is interoperability with Microsoft.

They also have a supported desktop edition.