[MlMt] choice of mailserver on osx

[Marc ARC]

Bill,

Thanks for the in depth info regarding both questions.

And I can confirm that CGP did a lot of work on the CalDAV ( and it took 
us quite some escalation and perseverance to have an difficult and most 
annoying issue resolved ) but sofa is the result OK.

Thanks again


Marc


On 11 Feb 2016, at 0:09, Bill Cole wrote:

> On 10 Feb 2016, at 4:17, Marc ARC wrote:
>
>> Dear MM list-users,
>>
>> We are looking for advice for a good, very functional,  well 
>> supported  ( and not to expensive, open source ? ) IMAP-mailserver 
>> that runs on OSX
>
> Dovecot is absolutely the IMAP server of choice for just about any 
> Unix-like OS where you don't have specialized needs for things it just 
> doesn't do. You can install from distribution source yourself or use 
> either MacPorts or Homebrew if you prefer or already use one of them 
> for software management. OR: see below
>
>> Eventually one that also supports calendar functionality ( CalDAV, . 
>> . .)
>
> Yeah, that's a different thing...
>
> MacOS Server (these days a VERY affordable compound app that installs 
> on standard MacOS X, not a pricey alternate version of the OS) 
> includes slightly customized versions of Dovecot and Postfix with a 
> reasonably good working config integrating them AND a CalDAV server 
> that is essentially the reference implementation of the CalDAV 
> spec(s). Unfortunately the CalDAV specs include some widely-expected 
> extensions which seem to confuse implementors on both client and 
> server sides to the point where interop really sucks. Mail/calendar 
> integration is the worst of it, to the point where both Google and 
> Apple don't even seriously try to follow the RFC defining how a CalDAV 
> server should do invites and change notifications on their public 
> services. I'm not actually sure how well the integration in MacOS X 
> Server is, but it's there, it's supported for a low price, and if you 
> prefer a GUI to manage a mail server, that's what you're getting. If 
> you prefer managing a mail server in a terminal, DO NOT use 
> Server.app: it will punish you for fiddling.
>
> If "we" consists of a small number of people (i.e. a family or tiny 
> business) you might also want to consider CommuniGatePro, an 
> integrated "Universal Communication Server" meant to compare to MS 
> Exchange. It is free for a small number of users and functional for 
> more without a license except that it tags all outgoing messages with 
> a note that it's a trial version when you go over the free limit (I 
> don't recall if it is 5 or 10 users currently...) Paid pricing for CGP 
> might be deemed "not too expensive" in the right frame of reference. 
> Its CalDAV integration has evolved over the years from quasi-fraud to 
> pretty solid. CGP is a truly integrated server (one closed-source 
> binary daemon for 
> SMTP/POP/IMAP/LDAP/SIP/XMPP/CalDAV/CardDAV/WebDAV/etc.) unlike MacOS X 
> Server (a couple dozen daemons dressed up in a single duct-taped 
> trenchcoat...) or a standalone Dovecot (which is great at IMAP and POP 
> but doesn't send or receive mail on its own). Since CGP has a web 
> admin GUI you may prefer it over Dovecot's deeply versatile and 
> possibly confusing maze of config files or the oversimplified and 
> mandatory GUI layer that Server wraps around Dovecot's complexity.
>
> However, mif you really ONLY want IMAP and CalDAV, you can get Dovecot 
> in prepackaged or source form and the latest from calendarserver.org 
> and wire them together yourself, hooking into the Mac's built-in 
> trivial Postfix installation as/if needed. Getting to that state with 
> Server.app or CGP would be a lot of pointing and clicking to turn 
> stuff off.
>
> (full disclosure: I make my living in part by managing multiple mail 
> systems, which include Postfix+Dovecot, MacOS X Server, and CGP 
> environments. They all suck, each in their own special unique ways...)
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