I have to research what the problem was the last time this happened. I'm pretty sure it was either pilot error on my behalf or something funky going on at Network Solutions. I'm going to see what I can find on that, right now.
In the mean time, I send Previews from Power Messenger Mailing Design.
I went back to Power Messenger on Network Solutions and send a Preview that way and it came in just fine. That was from last week's newsletter.
I then went to last week's newsletter on Bluehost (same one) and tried to send a Preview from there: nothing came in.
Last week's newsletter's HTML and images are on the Network Solutions server; this week's Bluehost.
So, I guess we can conclude that something's either wrong with the way this is set up on Bluehost or there's a Bluehost issue.
The trick is, I have no idea what to ask Bluehost support about and they're not familiar with PowerMessenger.
While I'm researching what happened around late April of last year, if you have any ideas, that would be greatly appreciated. If I find something, I'll post it here, right away.