Hi there,
We are are group of companies, and we have multiple accepted domains with different email address policies to have different SMTP addresses.
Some users, mostly accounts and HR team, have SMTP addresses (user@abc.com, user@def.com..). They can receive all these emails, but now it has reached a point where these users should be able to send OUT emails from any of these addresses to our clients.
For example, when communicating with customer 1, user should be able to send email from user@abc.com.
Similarly, when communicating with Customer 2, the user should be able to send email from user@def.com