Hi,
Er require expert to install power MTA on 10 Servers with different sub domain, it should be complied with all standard like DKIM, SPF, DMRC and all
Need to provide training on how to install Power MTA, How to configure and optimum use of power MTS with bounce processing and feedback loop processor
We have an Mailwhizz application and dont want to use interspire, so your job is just to install power MTA on 10 servers with single IP on each server
Budget is not so high, so will recommend to install on one server and gives training to our team, so that they can take of rest
Email Header should be comes like how when you see in when send from sendgrid, elasticemail or with some other transactional email services providers when use non domain email ids