Mail Server issues (MailEnable)

Dears, We are looking for a good technical expert to work on the following issues: 1. MailEnable - Mail Server is not sending emails so need to check SMTP setting tc 2. also mail server is being used to send spam emails so we need to stop this and block all spam email senders 3. mail server is not reachable from outside using trace-route so need to check in detail Environment: Windows Server 2012, Plesk, MailEnable Please note that access will be provided using Team Viewer only and in the presence of our resource. Appreciate your understanding to bid/accept if you have complete idea of requirement and issue to save time. Thanks