Re: [xmail] Speed

2010-02-01 Thread Spyros Tsiolis

Hi Sabahattin,

It's been like donkeys' years since I've used an MTA other than XMail.
I've been using XMail for nine years now (going for a decade) and never
had any problems.
That's why I don't drop it. It's a rock solid MTA.
Concerning speed, I don't know. But I would safely bet that XMail is
up there, either first or second with the rest of the MTAs.

Just my opinion,

s.



-
I merely function as a channel that filters music through
the chaos of noise
- Vangelis



 From: m...@sabahattin-gucukoglu.com
 Date: Sat, 30 Jan 2010 12:25:51 +
 To: xmail@xmailserver.org
 Subject: [xmail] Speed
 
 Hi all,
 
 By all reasonable accounts, XMail is fast.  Does anybody know how it stacks 
 up against the competition?  Postfix, in particular, has held the speed crown 
 for a good while now.  But XMail with this fast thread startup and connection 
 reuse could, I'm sure, be made to outflank Postfix even under stress and with 
 its connection cache enabled.
 
 Cheers,
 Sabahattin
 
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Re: [xmail] Speed

2010-01-31 Thread Davide Libenzi
On Sat, 30 Jan 2010, David Lord wrote:

 On 30 Jan 2010 at 12:25, Sabahattin Gucukoglu wrote:
 
  Hi all,
  
  By all reasonable accounts, XMail is fast.  Does anybody know how it stacks 
  up against the competition?  Postfix, in particular, has held the speed 
  crown for a good while now.  But XMail with this fast thread startup and 
  connection reuse could, I'm sure, be made to outflank Postfix even under 
  stress and with its connection cache enabled.
 
 
 Here on my minimal server it's filters that take most
 of resources by orders of magnitude I'd guess.

That is indeed what todays is the limiting factor of MTA's performance. 
Pretty much everyone runs some sort of filters, checks RBLs, and so on, 
which end up limiting performance far more than thread pooling and 
connection caching.
Unless you use an MTA which run no filter, which perform no DNS
resolution, which does no RDNS checks,, which checks no RBLs, and so on.


- Davide


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Re: [xmail] Speed

2010-01-31 Thread Sabahattin Gucukoglu
On 31 Jan 2010, at 14:58, Davide Libenzi wrote:
 On Sat, 30 Jan 2010, David Lord wrote:
 On 30 Jan 2010 at 12:25, Sabahattin Gucukoglu wrote:
 By all reasonable accounts, XMail is fast.  Does anybody know how it stacks 
 up against the competition?  Postfix, in particular, has held the speed 
 crown for a good while now.  But XMail with this fast thread startup and 
 connection reuse could, I'm sure, be made to outflank Postfix even under 
 stress and with its connection cache enabled.
 
 
 Here on my minimal server it's filters that take most
 of resources by orders of magnitude I'd guess.
 
 That is indeed what todays is the limiting factor of MTA's performance. 
 Pretty much everyone runs some sort of filters, checks RBLs, and so on, 
 which end up limiting performance far more than thread pooling and 
 connection caching.
 Unless you use an MTA which run no filter, which perform no DNS
 resolution, which does no RDNS checks,, which checks no RBLs, and so on.

That might be an ideal relay-only site, actually.  If you had multiple MTAs, 
you could devote those with fewer such checks to outbound-only deliveries, 
mailing lists in particular.  Then, spending as little time wasting remote SMTP 
startup/shutdown and new processes probably makes much more sense.  I've 
already optimised DNS using large local caches, and would be willing to do 
almost no checks on client deliveries, only inbound SMTP server sessions.  
Those are always slow, because of authentication, TLS, mail processing, etc.

Cheers,
Sabahattin

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[xmail] Speed

2010-01-30 Thread Sabahattin Gucukoglu
Hi all,

By all reasonable accounts, XMail is fast.  Does anybody know how it stacks up 
against the competition?  Postfix, in particular, has held the speed crown for 
a good while now.  But XMail with this fast thread startup and connection reuse 
could, I'm sure, be made to outflank Postfix even under stress and with its 
connection cache enabled.

Cheers,
Sabahattin

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Re: [xmail] Speed

2010-01-30 Thread David Lord
On 30 Jan 2010 at 12:25, Sabahattin Gucukoglu wrote:

 Hi all,
 
 By all reasonable accounts, XMail is fast.  Does anybody know how it stacks 
 up against the competition?  Postfix, in particular, has held the speed crown 
 for a good while now.  But XMail with this fast thread startup and connection 
 reuse could, I'm sure, be made to outflank Postfix even under stress and with 
 its connection cache enabled.


Here on my minimal server it's filters that take most
of resources by orders of magnitude I'd guess.

David

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