I setup a domina called "domain.com". This domain has a email service enabled and it is working OK. For some reasons I'd like to change the email from "joe@domain.com" to "joe@smtp.domain.com". Therfore, I created a new subdomain "smtp.domain.com" and then createad a joe account that is used to send alerts a web service we have. All looks good, emails are send from from joe@smtp.domain.com
However, now I'd like to disable email service on "domain.com" as it's not longer needed. If I do it, I can't send emails using joe@smtp.domain.com. The error recived is: Response: error : transaction failed. the server response was: 5.7.1 : relay access denied
I don't understand why disabling email service on "domain.com" affects "smtp.domain.com" email service.
However, now I'd like to disable email service on "domain.com" as it's not longer needed. If I do it, I can't send emails using joe@smtp.domain.com. The error recived is: Response: error : transaction failed. the server response was: 5.7.1 : relay access denied
I don't understand why disabling email service on "domain.com" affects "smtp.domain.com" email service.