I have a bit of a problem with bounce verification and I am hoping someone can help me.
It could be to do with the way we have mail routing and I am hoping I can explain the routes enough for you to understand.
We have 2 x C300 in place in two locations in the world. One is in Australia and the other is in Vancouver.
We have several domains and depending on the domain used the email will either come in via the Australian or Vancouver ESA.
All AU users go out via the AU ESA, all American / Canadian users go out via the VN ESA.
A user in AU can have an email address of [email protected] and will exit the AU ESA and then when replied to will come in via the VN ESA.
Visa versa, a User in VN can have an email address of [email protected] and it will exit via the VN ESA and enter via the AU ESA.
Any user in AU with a [email protected] will exit and enter via AU and any VN user with a [email protected] will exit and enter via the VN ESA. These type of emails work fine.
Still with me?
I have setup bounce verification on both ESA to have the same Key (is this a bad thing?)
When the [email protected] in AU sends an email, it exits via the AU ESA and then the reply comes back in via the VN ESA and gets rejected, I believe this is because the VN ESA sees the correct KEY, however the IP address is wrong.
This is the error. (some details changed to protect the innocent)
"< mail.AU.ESA #5.0.0 smtp; 5.1.0 - Unknown address error 550-"5.7.1 <[email protected]>... recipient denied, because MX 10 'smtp.VN.ESA.' [192.168.1.1] for <prvs=3198325dc=[email protected]> rejected address saying: #5.1.0 Rejected by bounce verification." (delivery attempts: 0)>"
Is there a better way for me to do this?
Any help you can provide will be great.