Some hosts do not allow outbound connections on 587. I blogged about how to test it: http://www.mcbsys.com/techblog/2014/12/testing-an-outbound-port-from-your-web-host/.
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Some hosts do not allow outbound connections on 587. I blogged about how to test it: http://www.mcbsys.com/techblog/2014/12/testing-an-outbound-port-from-your-web-host/.