SMTP modify a character in the packet

I was working ofr a few days with that and I found how can do the iRule.

 

Now, my problem is that I can not forward the traffic for the virtual IP.

 

 

The irules is implemented when the connection is established by a sendmail in the server side, then I am trying that all smtp traffic pass-through the BIGIP with a virtual server, it mean that I wrote the IP of a virtual server in configured in the BIGIP (/etc/hosts).

 

BIGIP recieved this connection, but when it tried to connect with the destination it is done by the SelfIP and not by the VIP.

 

 

Below is the configration:

 

pool test {

 

lb method member least conn

 

monitor test_smtp

 

member 192.168.19.50:25

 

}

 

 

virtual MMSC_SMTP_Personal {

 

destination 192.168.16.51:smtp

 

ip protocol tcp

 

pool test

 

rule remove_9_MSISDN

 

vlans C_internal external_m enable

 

}

 

 

Do you know why is wrong in the configuration and what is the correct way to configurated this?