Plesk8 multiple IPs - set outgoing mail IP address

[fishnyc22]

Hey there...

I have a box running plesk 8 on Linux 2.6.16-rc6-060427a

The box has 2 IPs running for 2 domains with dedicated SSL certs. And shows 1 (first) ip for outgoing traffic (I don't understand this too well. but thats what I was told)

Anyway....

Is it possible to set what IP sendmail goes out on rather than it showing its coming from the first IP?

Any info would be appreciated.

Thanks

 

[phoenixisp]

First off, Plesk uses qmail, not sendmail. The IP that it sends mail on is the IP associated with the host name. I guess you could use the reconfigurator utility to swap IPs.

 

[fishnyc22]

Thanks for the reply... Actually I wasn't referring to outgoing mail in the mail system sent out by users.... I mean web applications on the server that are using sendmail to send messages out.

At least I think thats how it works.

 

[phoenixisp]

Although the scripts may say sendmail, the location (/usr/sbin/sendmail) is a symlink to /etc/alternatives/mat which points to qmail. That is why outgoing emails come from the "first" IP.

 

[fishnyc22]

interesting. thanks for the info.
to be honest. I have no idea what "reconfigurator utility to swap IPs." mean. any suggestions of how to do this.

thanks

 

[phoenixisp]

If you had run a search on reconfigurator you would have found a few threads, but...

From shell:

#/usr/local/psa/bin/reconfigurator.pl map_file

This will create a file named "map_file" - edit this file with the proper ip's. Directions are in the file.

 

[fishnyc22]

Hey phoenixisp

I'm finally back to working on this. I tried to mess with reconfigurator but i don't think I did it right.

Just as background I have 4 ip addresses on my server. I have 3 domains each with an exclusive IP. the 4th ip is not really used yet.

xxx.xxx.xxx.xx1 - domain1.com PRIMARY IP
xxx.xxx.xxx.xx2 - domain2.com
xxx.xxx.xxx.xx3 - domain3.com
xxx.xxx.xxx.xx4

My Mapfile looks like this:

eth0:xxx.xxx.xxx.xx1 255.255.255.255 -> eth0:xxx.xxx.xxx.xx1 255.255.255.255
eth0:xxx.xxx.xxx.xx2 255.255.255.255 -> eth0:xxx.xxx.xxx.xx2 255.255.255.255
eth0:xxx.xxx.xxx.xx3 255.255.255.255 -> eth0:xxx.xxx.xxx.xx3 255.255.255.255
eth0:xxx.xxx.xxx.xx4 255.255.255.255 -> eth0:xxx.xxx.xxx.xx4 255.255.255.255

When I changed some of the mapfile and tried to view domain3.com in my browser but I was pointed to the site for domain1.com. so I did something wrong there I guess. So I switched it back to the way I had it.

My Primary IP xxx.xxx.xxx.xx1 is showing up for all outgoing traffic and email headers. My main concern is that the mail sent from domain3.com has a header from xxx.xxx.xxx.xx1 and I think a lot of mail ends up in a spam folder.

I've read several posts to solve this problem different ways. Domain1 and domain2 are not really in use. so if I can change my primary IP to xxx.xxx.xxx.xx3 will qmail follow suit?

http://forum.swsoft.com/showthread.php?s=&threadid=33802
http://forum.swsoft.com/showthread.php?s=&threadid=32044
http://forum.swsoft.com/showthread.php?s=&threadid=17760

I also found this post on swsofts knowledgebase:
http://kb.swsoft.com/article_22_1190_en.html

looking at my ip route I think I can run something liek this:
/sbin/ip route change default via 10.255.255.1 dev eth0 src xxx.xxx.xxx.xx3

but I'm a bit nervous to do so. any additional guidance would REALLY be appreciated.

 

[dw604]

Here's how to patch qmail so you can set the outgoing IP to any one on the server:

http://forum.swsoft.com/showthread.php?s=&threadid=34664