1. You have a requirement to send all mail via a smarthost
2. You migrated to Office 365, but require on-premise relaying services
We have added a new section here on MSExchange.org, which lists the most popular solutions you can get on the market.
by Henrik Walther [Published on 5 Feb. 2013 / Last Updated on 5 Feb. 2013]
Depending on your business and the underlying messaging infrastructure, there can be several reasons why you may need a dedicated SMTP relay service solution.
1. You have a requirement to send all mail via a smarthost
2. You migrated to Office 365, but require on-premise relaying services
We have added a new section here on MSExchange.org, which lists the most popular solutions you can get on the market.