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Re: Advice on mailing list software -- special requirements

On Wed, Oct 24, 2018 at 01:47:27PM -0400, rhkramer@xxxxxxxxx wrote:
> > Now that is kind of hard to do.  All the mailing list servers that I've
> > worked with require a rather intimate interconnection with the MTA that
> > processes mail.  
> As stated somewhere, we're almost certainly going to accept the offer to host 
> the mail list for us.
> But, just for my education / edification, I didn't see mention of an MTA for 
> courier-pop -- have you used it and does it require that same intimate 
> connection to an MTA?

courier-pop is not a Mail Transfer Agent. It cannot send or receive
e-mail, it's a POP3 server.
courier-mta, as all other MTAs, supposedly requires a very specific
configuration to be suitable for a maillist.

> And the only dependency listed for quickml is ruby, so I'm guessing that might 
> not require that intimate connection.

The thing comes with the very primitive MTA indeed.
I only judge by the quick look at the sources, but this 'QuickML MTA'
seem to lack even basic sanity checks such as HELO/EHLO parsing, PTR
checks or RCPT validity check. And it may, or may not be an open relay.
In short - it gives an impression of a spammer wet dream.

> (And, talking to myself, I saw several others that mentioned procmail, and I 
> didn't immediately consider that an MTA because I have used it in the past but 
> only for its mail filtering function.  (Or am I thinking of a different 
> package?))

Likewise, procmail is not an MTA, it's a Mail Delivery Agent - MDA.
The purpose of a procmail is to classify and deliver e-mail, not to send
or receive it.