Different SMTP/TLS Auth to same destination server based on sender address?

[DanH]

We want to implement a mail gateway that is forwarding email to a specific mail host based on the MX record.
However, the login credentials should be different (for that same mail host) based on the sender address.
The email is sent from an application server via SMTP to the local Proxmox Mail Gateway.

Is this possible with Procmox Mail Gateway?

Example:
Application sends an Email from one@somedomain.com to destinationdomain.com via proxmox mailgateway.
Proxmox gateway sends email via SMTP/TLS Auth with credentials loginone@somedomain.com/password-123 to the mailhost for destinationdomain.com.

Application sends an Email from two@anotherdomain.com to destinationdomain.com via proxmox mailgateway.
Proxmox gateway sends email via SMTP/TLS Auth with credentials logintwo@anotherdomain.com/password-xyz to the mailhost for destinationdomain.com.

Thanks
Dan