I haven't changed any settings for my mail, but it stopped sending emails a week ago when I use hughes. If I use gmail account it works, only having issues when sending from hughes account. I use outlook, never use the web mail provided by hughes since it is horribly slow and the top third of the page is a hughes header. What has changed recently that would cause this?
Odd that within a minute of your reply to this post I get an email from hughes to my gmail account with your reply, but outlook errors after a 5 minute wait. Both programs are using EXACTLY the same settings. I copied them from outlook to gmail when I set it up a couple years ago. Both worked as long as hughes was working until just recently. That is what is so puzzling to me.
It sounds like a false spam flag set at the smtp.hughes.net email server. Are you seeing error messages other than a 300 second time-out? Such as the "Server Response: 452 4.7.0 [F11-1] Too many messages sent" message?