Re: High Availability on Postfix

2015-04-17 Thread Wietse Venema
Thegeswini S: > Could some one help on below request ? > > On Thu, Apr 16, 2015 at 1:02 PM, Thegeswini S wrote: > > > > > Presently we use primary MTA as Postfix for outbound mail server and we > > were not configured inbound mails as we don;t have POP server in our env. > > > > The mail server

Re: High Availability

2014-04-08 Thread Jose Ildefonso Camargo Tolosa
On Sun, Apr 6, 2014 at 2:05 PM, Ramesh wrote: > > Hi All, > > Hi! > Presently we have primary MX and backup MX servers, when primary goes down > mails will be queued in secondary MX, once primary restored all messages > pushed from backup MX to primary MX, messages are not lost. I would like to

Re: High Availability

2014-04-07 Thread tejas sarade
I don't see any reason to complicate things by implementing HA solution, when you can simply have multiple MX records. On Mon, Apr 7, 2014 at 12:35 AM, Ramesh wrote: > > > Hi All, > > Presently we have primary MX and backup MX servers, when primary goes down mails will be queued in secondary MX,

Re: High Availability

2014-04-07 Thread Wietse Venema
Miles Fidelman: > Wietse Venema wrote: > > Miles Fidelman: > >>> Have you considered the following: > >>> > >>> - Inbound mail spends a fraction of a second in the queue. > >>> > >>> - Inbound mail spends days or weeks or more in the mailbox. > >>> > >>> - If an MTA goes down, mail flows via altern

Re: High Availability

2014-04-07 Thread Miles Fidelman
Wietse Venema wrote: Miles Fidelman: Have you considered the following: - Inbound mail spends a fraction of a second in the queue. - Inbound mail spends days or weeks or more in the mailbox. - If an MTA goes down, mail flows via alternate MX hosts. - If the mailbox store goes down, then you

Re: High Availability

2014-04-07 Thread Wietse Venema
Miles Fidelman: > > Have you considered the following: > > > > - Inbound mail spends a fraction of a second in the queue. > > > > - Inbound mail spends days or weeks or more in the mailbox. > > > > - If an MTA goes down, mail flows via alternate MX hosts. > > > > - If the mailbox store goes down, t

Re: High Availability

2014-04-07 Thread Miles Fidelman
Wietse Venema wrote: Miles Fidelman: To find solutions, open your favorite search engine and try "cyrus mailbox replication", "dovecot meailbox replication", and so on. I've been wondering about this too, and it strikes me that "mailbox replication" is only relevant to local delivery. What abo

Re: High Availability

2014-04-07 Thread Wietse Venema
Miles Fidelman: > > To find solutions, open your favorite search engine and try "cyrus > > mailbox replication", "dovecot meailbox replication", and so on. > > I've been wondering about this too, and it strikes me that "mailbox > replication" is only relevant to local delivery. What about replic

Re: High Availability

2014-04-07 Thread Nikolaos Milas
On 7/4/2014 8:17 πμ, Patrick Ben Koetter wrote: On Linux use DRBD to replicate mail queues between a pair of machines and crm to control a second Postfix instance that will be started locally to pickup any remaining mails once the partner machine dies. Hmm, I think DRBD is only advised in case

Re: High Availability

2014-04-06 Thread Patrick Ben Koetter
* Miles Fidelman : > Hi Wietse, > > Wietse Venema wrote: > >Wietse: > >>The right question is "I need a message store that is replicated > >>in multiple locations". Once you have such a message store, any > >>number of Postfix MTAs and mail clients can use it. > >Ramesh: > >>Please let me know how

Re: High Availability

2014-04-06 Thread Miles Fidelman
Hi Wietse, Wietse Venema wrote: Wietse: The right question is "I need a message store that is replicated in multiple locations". Once you have such a message store, any number of Postfix MTAs and mail clients can use it. Ramesh: Please let me know how to implement this, share me urls i will g

Re: High Availability

2014-04-06 Thread Wietse Venema
Wietse: >The right question is "I need a message store that is replicated >in multiple locations". Once you have such a message store, any >number of Postfix MTAs and mail clients can use it. Ramesh: >Please let me know how to implement this, share me urls i will go >through it how replication hel

Re: High Availability

2014-04-06 Thread Ramesh
Im sorry Wietse, Please let me know how to implement this, share me urls i will go through it how replication helps to solve our problem. Regards, Ramesh On Monday, 7 April 2014 1:00 AM, Wietse Venema wrote: Ramesh: >Presently we have primary MX and backup MX servers, when primary >goes do

Re: High Availability

2014-04-06 Thread Wietse Venema
Ramesh: >Presently we have primary MX and backup MX servers, when primary >goes down mails will be queued in secondary MX, once primary restored >all messages pushed from backup MX to primary MX, messages are not >lost. I would like to know any solution sending and receiving >messages from backup M

Re: High Availability Solution for Postfix SMTP Server

2012-06-19 Thread DTNX Postmaster
On Jun 19, 2012, at 16:36, John Hudak wrote: > He stated his requirement, specifically, the need for a high availability > system. The details of what lead him to having this requirement are somewhat > irrelevant - unless you want to go down the path of eliciting all the quality > attributes a

Re: High Availability Solution for Postfix SMTP Server

2012-06-19 Thread John Hudak
He stated his requirement, specifically, the need for a high availability system. The details of what lead him to having this requirement are somewhat irrelevant - unless you want to go down the path of eliciting all the quality attributes and look at architectural tradeoffs (which is not what he

Re: High Availability Solution for Postfix SMTP Server

2012-06-19 Thread Wietse Venema
John Doe: > From: Ansgar Wiechers > > > On 2012-06-18 Kaushal Shriyan wrote: > >> Are there any High Availability Solution for Postfix SMTP Server meaning > >> primary and secondary nodes in Active/Active or Active/Passive Clustering > >> mode? > > > > Please describe the problem you're tryin

Re: High Availability Solution for Postfix SMTP Server

2012-06-19 Thread Miles Fidelman
John Doe wrote: From: Ansgar Wiechers On 2012-06-18 Kaushal Shriyan wrote: Are there any High Availability Solution for Postfix SMTP Server meaning primary and secondary nodes in Active/Active or Active/Passive Clustering mode? Please describe the problem you're trying to solve instead

Re: High Availability Solution for Postfix SMTP Server

2012-06-19 Thread John Doe
From: Ansgar Wiechers > On 2012-06-18 Kaushal Shriyan wrote: >> Are there any High Availability Solution for Postfix SMTP Server meaning >> primary and secondary nodes in Active/Active or Active/Passive Clustering >> mode? > > Please describe the problem you're trying to solve instead of what

Re: High Availability Solution for Postfix SMTP Server

2012-06-18 Thread Ansgar Wiechers
On 2012-06-18 Kaushal Shriyan wrote: > Are there any High Availability Solution for Postfix SMTP Server meaning > primary and secondary nodes in Active/Active or Active/Passive Clustering > mode? Please describe the problem you're trying to solve instead of what you perceive as the solution. Rega

Re: high-availability configurations?

2012-03-15 Thread Miles Fidelman
Jeroen Geilman wrote: On 03/14/2012 04:19 PM, Miles Fidelman wrote: Hi Folks, I'm currently running a pretty basic high-availability configuration for our mail server (postfix) - it simply runs in a Xen virtual machine, with mirrored disks across two machines (DRBD), and failover of the VM i

Re: high-availability configurations?

2012-03-15 Thread Jeroen Geilman
On 03/14/2012 04:19 PM, Miles Fidelman wrote: Hi Folks, I'm currently running a pretty basic high-availability configuration for our mail server (postfix) - it simply runs in a Xen virtual machine, with mirrored disks across two machines (DRBD), and failover of the VM if something goes wrong

Re: high-availability configurations?

2012-03-14 Thread Jose Ildefonso Camargo Tolosa
On Wed, Mar 14, 2012 at 10:49 AM, Miles Fidelman wrote: > Hi Folks, Hi. > > I'm currently running a pretty basic high-availability configuration for our > mail server (postfix) - it simply runs in a Xen virtual machine, with > mirrored disks across two machines (DRBD), and failover of the VM if

Re: high-availability mail cluster?

2011-10-21 Thread Robert Schetterer
Am 21.10.2011 18:10, schrieb Robert Schetterer: > Am 21.10.2011 15:27, schrieb Miles Fidelman: >> Hi Folks, >> >> I'm about to rebuild a server farm, and I'm thinking about alternate >> approaches to high-availability for our mail services. >> >> Right now, I just run a collection of services (incl

Re: high-availability mail cluster?

2011-10-21 Thread Robert Schetterer
Am 21.10.2011 15:27, schrieb Miles Fidelman: > Hi Folks, > > I'm about to rebuild a server farm, and I'm thinking about alternate > approaches to high-availability for our mail services. > > Right now, I just run a collection of services (including mail) on a > virtual machine, on top of a disk f

Re: high-availability mail cluster?

2011-10-21 Thread list
On Fri, 21 Oct 2011 09:27:03 -0400, Miles Fidelman wrote: > Hi Folks, > > I'm about to rebuild a server farm, and I'm thinking about alternate > approaches to high-availability for our mail services. > > Right now, I just run a collection of services (including mail) on a > virtual machine, on