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SMTP VIP - Redirect

RAQS
Cirrus
Cirrus

Hi All,

 

Hope you are doing great.

 

I have SMTP VIP (10.11.72.86:25) currently it is resolving to smtp.ent.abc.net and i want to redirect this URL to smtp.ent.abc.com.

 

However, my understating is that i can redirect HTTP URL. But what we can do if we have SMTP VIP?

 

Regards,

ShashankS

1 ACCEPTED SOLUTION

JG
Cumulonimbus
Cumulonimbus
  1. "Redirect" is normally an HTTP-specific term.
  2. You can make smpt.abc.com to have the same IP address as the virtual server's. You need to make sure, however, that the backend server can handle all these mail domains; for this is simply a TCP proxy and mail will be processed by the SMTP server at the back.

View solution in original post

7 REPLIES 7

JG
Cumulonimbus
Cumulonimbus

You cannot "redirect" the SMTP traffic the way you do the HTTP traffic, for "redirect" is not a directive/part of the SMTP protocol.

 

However, you can set up a virtual server with the address of 10.11.72.86 and a server pool containing smtp.ent.abc.com. That way, the traffic for 10.11.72.86 will be passed to smtp.ent.abc.com.

Hi JG,

 

Thanks for reply. So, basically we cant redirect. If my understanding is correct then the option which you suggested is seems to be load balancing.

 

Source IP ==> LB VIP ( 10.11.72.86:25) ==> Self IP ==> smtp.ent.abc.com.

 

Regards,

ShashankS

JG
Cumulonimbus
Cumulonimbus

That would be a proxy in effect.

Oki.. So can i make below conclusions:- We can do redirection only for those VIPs or application which are accessible via http or https ? And Secondly , if some other team is redirecting smtp.ent.abc.net to smpt.abc.com then what changes we should do at our end if VIP is configured on F5 as Ltm?. (My understanding is not to update anything) Thanks , ShashankS

JG
Cumulonimbus
Cumulonimbus
  1. "Redirect" is normally an HTTP-specific term.
  2. You can make smpt.abc.com to have the same IP address as the virtual server's. You need to make sure, however, that the backend server can handle all these mail domains; for this is simply a TCP proxy and mail will be processed by the SMTP server at the back.

Thanks JG for your time and reply. So it means that no changes required at F5 (LTM) level. Only at the backend and at DNS level. Regards, ShashankS

JG
Cumulonimbus
Cumulonimbus

Correct.