Very rusty with this. Working on an SBS 2010 standard. Mail is not going out. It's the weekend. I see 58 emails in the send connector queue.
The connector was set up years ago to use a web / email hosting company as smarthost. it's talking about authentication errors. If the hosting company stopped that account set up in the send connector, what other options do we have?
What companies are out there to let us use as a smart host? Why do we need a smart host? Why not be able to just push the emails out onto the web? And how would we set that uo?
talks of choosing use dns and MX to route mail. Can we just use that? What's the pros / cons of doing that? And /or how do you set up a 2nd smart host entry - if it can't send mail with first, smarthost, failover to 2nd?