EFA as a gateway with multiple domains
Posted: 04 Oct 2018 18:58
Hi,
First of all, thank you for the great work achieved with EFA. I have been using it for a long time, sometimes giving me some headache during the setup but so reliable once it is in production.
Today, I try to configure EFA like this for both incoming emails and outgoing emails:
Internet --> EFA --> Mail server (with many domains)
Mail server --> EFA --> External Smtp (let's say sendgrid) --> Internet
Because :
1/ I want EFA to filter all incoming emails before it reaches my mail server
2/ I want EFA to filter all outgoing email before it reaches sendgrid
My issues:
I am OK with the 2/. Not with the 1/. But I feel like it may create a loop.
My Mail server hosts a lot of domains and I don't want to synchronize the domain list with EFA.
Instead, I would like to use wild card and identify routes based on networks.
My dream:
EFA understands when an email is coming from my Mail server (via its IP or hostname?) so it routes is to sendgrid.
EFA understands when an email is coming from the internet (not from my Mail server) so it routes it to my Mail server.
After looking for the way to achieve this - standing unsuccessful - I thought of creating 2 EFA server (one called smtp-in and the other smtp-out) but before I do this, I try my last chance right here
Vincent
First of all, thank you for the great work achieved with EFA. I have been using it for a long time, sometimes giving me some headache during the setup but so reliable once it is in production.
Today, I try to configure EFA like this for both incoming emails and outgoing emails:
Internet --> EFA --> Mail server (with many domains)
Mail server --> EFA --> External Smtp (let's say sendgrid) --> Internet
Because :
1/ I want EFA to filter all incoming emails before it reaches my mail server
2/ I want EFA to filter all outgoing email before it reaches sendgrid
My issues:
I am OK with the 2/. Not with the 1/. But I feel like it may create a loop.
My Mail server hosts a lot of domains and I don't want to synchronize the domain list with EFA.
Instead, I would like to use wild card and identify routes based on networks.
My dream:
EFA understands when an email is coming from my Mail server (via its IP or hostname?) so it routes is to sendgrid.
EFA understands when an email is coming from the internet (not from my Mail server) so it routes it to my Mail server.
After looking for the way to achieve this - standing unsuccessful - I thought of creating 2 EFA server (one called smtp-in and the other smtp-out) but before I do this, I try my last chance right here
Vincent