I have a Cyrus installation with postfix and openXchange. I get the mails from catchall account with procmail and distribute with the mail server. Now I have a new site office where couples of staff members are going to be relocated.
Since we have only an ADSL line on site office if there any way I could forward the mails for these staff members to another Mail Server with dynamic IP address?
Any input will be really appreciated.
Thanks
Rajeev R. Veedu.
On Thu, 19 Oct 2006, Rajeev R Veedu wrote:
I have a Cyrus installation with postfix and openXchange. I get the mails from catchall account with procmail and distribute with the mail server. Now I have a new site office where couples of staff members are going to be relocated.
Since we have only an ADSL line on site office if there any way I could forward the mails for these staff members to another Mail Server with dynamic IP address?
The problem using things like dyndns and forwarding to a dynamic ip is that there is a possibility that when your ip has changed mail would be attempted to be delivered to the next user that gets your previous ip.
Even with v. low dns timeouts there is still that risk.
Better to get a static ip, or failing that use a pull system like fetchmail.
Regards Lance
-- uklinux.net - The ISP of choice for the discerning Linux user.
You can use some authentication between both SMTP to be sure your are connected to the good one.
On 10/19/06, Lance Davis lance@uklinux.net wrote:
On Thu, 19 Oct 2006, Rajeev R Veedu wrote:
I have a Cyrus installation with postfix and openXchange. I get the
mails
from catchall account with procmail and distribute with the mail server.
Now
I have a new site office where couples of staff members are going to be relocated.
Since we have only an ADSL line on site office if there any way I could forward the mails for these staff members to another Mail Server with dynamic IP address?
The problem using things like dyndns and forwarding to a dynamic ip is that there is a possibility that when your ip has changed mail would be attempted to be delivered to the next user that gets your previous ip.
Even with v. low dns timeouts there is still that risk.
Better to get a static ip, or failing that use a pull system like fetchmail.
Regards Lance
-- uklinux.net - The ISP of choice for the discerning Linux user. _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Thu, 2006-10-19 at 18:04 +0400, Rajeev R Veedu wrote:
I have a Cyrus installation with postfix and openXchange. I get the mails from catchall account with procmail and distribute with the mail server. Now I have a new site office where couples of staff members are going to be relocated.
Since we have only an ADSL line on site office if there any way I could forward the mails for these staff members to another Mail Server with dynamic IP address?
I don't think that using a dynamic address is a good thing (because of the delay between your ip changes and the time you register it with dyndns for example) ... But if you use a vpn tunnel between the two machines (with openvpn) you'll be able to always specify a static ip address (on your remote lan and not your wan) as destination . Openvpn has interesting features like persist-tun to be sure that even if the computer has a dynamic address the tunnel will be restablished automagically ...
The validity of a dyn dns address is 60sec, this is small enough to be invisible to email users ! This is not a probleme.
BUT openvpn is a very very good tools, and will heve all the advantage of a permanent VPN between both sites.
On 10/19/06, Fabian Arrotin fabian.arrotin@arrfab.net wrote:
On Thu, 2006-10-19 at 18:04 +0400, Rajeev R Veedu wrote:
I have a Cyrus installation with postfix and openXchange. I get the mails from catchall account with procmail and distribute with the mail server. Now I have a new site office where couples of staff members are going to be relocated.
Since we have only an ADSL line on site office if there any way I could forward the mails for these staff members to another Mail Server with dynamic IP address?
I don't think that using a dynamic address is a good thing (because of the delay between your ip changes and the time you register it with dyndns for example) ... But if you use a vpn tunnel between the two machines (with openvpn) you'll be able to always specify a static ip address (on your remote lan and not your wan) as destination . Openvpn has interesting features like persist-tun to be sure that even if the computer has a dynamic address the tunnel will be restablished automagically ...
-- Fabian Arrotin fabian.arrotin@arrfab.net
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
fetchmail is the way to go on this. It's one of the things it's designed to do. You can set up fetchmail on the remote site office, and it will pull down new messages as they come in.
Your other option is to have the remote users mail client configured to POP their mail from your server.
On 10/19/06, Rajeev R Veedu rajeev@cracknell.com wrote:
I have a Cyrus installation with postfix and openXchange. I get the mails from catchall account with procmail and distribute with the mail server. Now I have a new site office where couples of staff members are going to be relocated.
Since we have only an ADSL line on site office if there any way I could forward the mails for these staff members to another Mail Server with dynamic IP address?
Any input will be really appreciated.
Thanks
Rajeev R. Veedu.
-
Alain Spineux -
Andreas Micklei -
Brian Mathis -
Fabian Arrotin -
Lance Davis -
Rajeev R Veedu