what in/out bound mail system to use ? hosted or not?

I have a ruby / rails application that integrates in and outgoing email directly into the app. The app is going to be running on multiple domains each wit开发者_JAVA百科h posible many users sending and recieving email.

I have looked into sendgrid, mailchimp and mad mimi as hosted services and also looked to create my own email server.

There are advantages and disadvantages of both solutions and i am not sure which one to go down and am hoping someone can give me advice ??

Any help will be great. I know email is a hassle to manage but once set up correctly cant be that bad ??

Thanks in advance Rick

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Hosting your own Mail Transfer Agent (MTA) has some benefits with easier mailbox creation and less latency but it requires significantly more maintenance. There's also the problem with spam filtering that would require some constant tweaking. An outside firm will likely have a more advanced filtering system in place that you can leverage the larger quantity of traffic passing through it.

Never underestimate the increased effort for uptime as more components are integrated.

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I'd use Heroku, the have some mail add-ons