How to set up an email server with postfix/cyrus

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audiodef · Post by **audiodef** » Mon Apr 11, 2011 5:37 pm

So far, so good. Well written!

Here's a suggestion: "However, as this database isn't going to be particularly large nor resource-intensive, MySQL is realistically overkill, and SQLite should be perfectly suitable unless you have thousands upon thousands of users, and you have multiple people updating the database at the same time."

You could add "or if you already have MySQL and it's therefore convenient to just use that".

cach0rr0 · Post by **cach0rr0** » Mon Apr 11, 2011 6:15 pm

doc tweaked accordingly.

audiodef · Post by **audiodef** » Tue Apr 12, 2011 3:54 pm

I'm a little slow because it's been busy the past few days.

You write very well!

I was wondering if there was any reason for suggesting /root/overlays as PORTDIR_OVERLAY instead of the usual /usr/local/portage. Also, and I've done this on my own server for Cyrus, I make sure the necessary category dir exists, and then do cp -rv /usr/portage/category/package /usr/local/portage/category, and then download or modify ebuilds. I'm sure it's just a matter of personal preference.

audiodef · Post by **audiodef** » Tue Apr 12, 2011 4:19 pm

I'm debating whether to enable pop3 in cyrus.conf. Why don't you like it?

cach0rr0 · Post by **cach0rr0** » Wed Apr 13, 2011 7:31 pm

audiodef wrote: You write very well!

Thank ya! When I finally get motivated enough to write, it comes out fairly well. Though towards the end it will be a bit more obvious I was falling asleep at my keyboard and just trying to finish up

audiodef wrote: I was wondering if there was any reason for suggesting /root/overlays as PORTDIR_OVERLAY instead of the usual /usr/local/portage. Also, and I've done this on my own server for Cyrus, I make sure the necessary category dir exists, and then do cp -rv /usr/portage/category/package /usr/local/portage/category, and then download or modify ebuilds. I'm sure it's just a matter of personal preference.

Yeah, all personal preference. No real good reason, other than ~/overlays being easier for me to remember.

cach0rr0 · Post by **cach0rr0** » Wed Apr 13, 2011 8:42 pm

audiodef wrote:I'm debating whether to enable pop3 in cyrus.conf. Why don't you like it?

whoops, noticed this one a bit late

if i were to enable pop3 at all, it'd be pop3s
I don't generally like POP3, because I access my e-mail from multiple places. I want the messages to stay on the server so I can just as easily access them from home as I can from my phone or anywhere else.

http://www1.umn.edu/adcs/guides/email/imapvspop.html

As far as data-security goes, it *is* possible for clients to be configured to keep a local copy of e-mail with IMAP (this is the default with POP), but if I have control of a machine and am setting it up, I disallow this (moreso a concern for commercial type environments), because there may well be a case that someone loses their laptop or phone, and someone can easily hop on (e.g. boot sysrescuecd, ntfs-3g mount) and read all of those cached copies of the e-mail. Of course, if the user's disk is encrypted, that's not really a concern, but that's not always practical, AND if we're talking about Windows users, I'm quite certain "authorities" can get around BitLocker.

If your mail volume is such that storage is at a premium, you may well want to enable pop3s. Then again, you can just as easily keep watch over your disk usage, and if it gets to an unacceptably high level, enable pop temporarily, download the mail, dump in a backup somewhere locally, disable pop now that you've freed up space, and go on about your business. Of course, enforcing mailbox quotas gets you around the issue entirely.

audiodef · Post by **audiodef** » Wed Apr 13, 2011 10:08 pm

That all sounds good.

OK, I've gotten through the tutorial, and it's a nice one. But mail just doesn't seem to be working, and I rather suspect I haven't configured stuff right on Godaddy. I set up a webmaster at audiodef dot com email in postfix/cyrus/mysql and then went to Godaddy to change things there.

I think we went over this earlier in this thread, but I'm just not sure I've done everything right on the Godaddy end.

I went to DNS manager, edit zone, scroll down to MX, quick add, points to = audiodef.com, host = @, priority = 0. Do I leave the mailstore1.secureserver.net and mtp.secureserver.net lines there (I removed them earlier, I have since put them back to avoid bouncing emails from anyone trying to reach me)? How do I actually test the webmaster email I set up? I tried testing it with mail2web.com as a quick and dirty test, but got a no such email address error.

cach0rr0 · Post by **cach0rr0** » Wed Apr 13, 2011 11:54 pm

I get this when i try to connect to audiodef.com on port 25: