I have a general question about how MX records work.
I have two MX records for my company e-mail. One has a priority of 10 and the other has a priorty of 20. Each MX record points to a mail gateway (I'll call them server A and B).
The mail server with the priority of 10 (A) has been having problems. I am trying to replace it as soon as possible but in the mean time, when server A goes offline people sending from the outside are getting bounces. Despite the fact that server B is up and healthy.
My question is, when mail server A is having problems why doesn't mail instead flow to server B via the lower priorty MX record?
Is this expected behavior? I'll probably just end up giving server B's MX record a higher priority but I was just curious about how MX records are suppose to work in this situation. Thanks for any help.
I have two MX records for my company e-mail. One has a priority of 10 and the other has a priorty of 20. Each MX record points to a mail gateway (I'll call them server A and B).
The mail server with the priority of 10 (A) has been having problems. I am trying to replace it as soon as possible but in the mean time, when server A goes offline people sending from the outside are getting bounces. Despite the fact that server B is up and healthy.
My question is, when mail server A is having problems why doesn't mail instead flow to server B via the lower priorty MX record?
Is this expected behavior? I'll probably just end up giving server B's MX record a higher priority but I was just curious about how MX records are suppose to work in this situation. Thanks for any help.