[Dovecot] Migrate from LDA to LMTP

[Jiri Bourek]

On 8.5.2014 17:27, Rick Romero wrote:
>   Quoting Reindl Harald <h.reindl at thelounge.net>:
>
>> Am 08.05.2014 17:13, schrieb Rick Romero:
>>> Quoting Reindl Harald <h.reindl at thelounge.net>:
>>>
>>>> Am 08.05.2014 16:56, schrieb Alessio Cecchi:
>>>>> Il 08/05/2014 08:06, Davide ha scritto:
>>>>>> Hi to all, i have qmail installed on my system with dot-qmail files
>>>>>> format to deliver to mailbox (maildir format with dovecot 2.2.12);
>>>>>> currently i use LDA to delivery agent but we would migrate to LMTP is
>>>
>>> it
>>>>>> possible? and if yes someone could bring me to the right direction to
>>>>>> implement this? thanks.
>>>>>
>>>>> is not possibile to use Dovecot/LMTP with Qmail. LDA works fine
>>>>> for me (with qmail), why you need LMTP?
>>>>
>>>> why do you need qmail?
>>>>
>>>> the latest release is 1.0.3 from 1998 who right in his mind installs a
>>>> 16
>>>> years unmaintained software?
>>>
>>> Because (other than you having absolutely no idea what the latest
> release
>>> is) it's better than whatever you're using, so there
>>
>>> you having absolutely no idea what the latest release is
>>
>> http://en.wikipedia.org/wiki/Qmail
>>
>> Stable release         1.03 / June 15, 1998Preview release netqmail
> 1.06
>> / November 11, 2007
>
> Obviously you didn't see my "So There".  Your argument is invalid.

Well the "better than whatever you're using" part is somewhat doubtful. 
I had the opportunity to compare qmail and Postfix on a server with 
identical functionality and user base. Standard qmail setup (tcpserver - 
rblsmtpd - qmail-smtpd - qmail-qfilter) choked badly on million+ 
incoming connections per day (most of that being spam outbreak rejected 
by rblsmtpd, i.e. qmail-smtpd was never invoked)

That situation forced deployment of second server with same MX priority 
and even with that some clients weren't able to connect, because it 
choked as the first one.

After migration to Postfix one box handles even worse spam outbreaks 
(10M connections per day) with ease and with stock source base you can 
do things that required creating your own software and/or patching qmail 
with your own patches.

So you might want to tone it down with statements like that. Same goes 
for telling people they have no idea about something.