Re: Secondary Mail Server

2009-11-26 Thread Robert Brockway
On Wed, 25 Nov 2009, John Hasler wrote: That some organizations ignore the standard and deliberately configure their servers to give up after a few hours. I've been seeing less of that. My recent experience is that even organisations pushing a lot of mail will keep retrying for 24 or 48 hour

Re: Secondary Mail Server

2009-11-26 Thread Robert Brockway
On Wed, 25 Nov 2009, Tony Nelson wrote: My advice is not to have a "secondary" MX, as it is just going to be the main target of spammers, as secondary MX servers usually don't receive the care given to primary MX servers. It might well cause a lot of backscatter spam, as spam accepted during th

Re: Secondary Mail Server

2009-11-25 Thread John Hasler
TonyN writes: > ...you should just rely on normal SMTP retries. I wrote: > Which many servers no longer do correctly. Stan writes: > Standard retry timeout for most MTAs is 5 days. What exactly do you > mean by the statement above? That some organizations ignore the standard and deliberately c

Re: Secondary Mail Server

2009-11-25 Thread Stan Hoeppner
John Hasler put forth on 11/25/2009 5:55 PM: > TonyN writes: >> ...you should just rely on normal SMTP retries. > > Which many servers no longer do correctly. Standard retry timeout for most MTAs is 5 days. What exactly do you mean by the statement above? All "real" MTAs (not necessarily M$ Exc

Re: Secondary Mail Server

2009-11-25 Thread John Hasler
TonyN writes: > ...you should just rely on normal SMTP retries. Which many servers no longer do correctly. -- John Hasler -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org

Re: Secondary Mail Server

2009-11-25 Thread Tony Nelson
On 09-11-25 17:38:18, Phillipus Gunawan wrote: > Hi, > > I am planning to experimenting my own Secondary Mail server (MX) > Currently I had a Postfix on my shorewall and working fine to deliver > all emails to stupid Exchange07 > Setup the DNS, everything ok > > To add the flavor, I am planing to

Re: Secondary Mail Server

2009-11-25 Thread Stan Hoeppner
Phillipus Gunawan put forth on 11/25/2009 4:38 PM: > Hi, > > I am planning to experimenting my own Secondary Mail server (MX) > Currently I had a Postfix on my shorewall and working fine to deliver all > emails to stupid Exchange07 > Setup the DNS, everything ok > > To add the flavor, I am plani