helpdesk - I need expert IT to help us prepare SMTP server and SMS server to send emails and sms messages from our app

We are developing anroid and ios app that use java backend.
We need to verify users by phone and email and for that we need to have email and sms servers.
We need expert IT server to help us:
1. Choose best smtp server for sending emails
2. Choose best SMS server for sending sms
3. Help us on the whole process to run smtp server to be ready for use
4. Help us on the whole process to run sms server to be ready for use

Regards,
Hussein