Hi,

I would like to know if there is a secure way to allow SMTP relay from server in DMZ.  This is our Exchange server configuration.

All Exchange server roles installed on a single server.

No Edge server.

Thanks in advance.

Hello

if haven't got relay connector, need create one receive connector add only one dmz ip and if application can authentication use that authentication method, if cant use any auth method  enable anoynous relay.