It appears that whatever block there was between my secondary and primary MXes has expired, and they can talk to each other now. This seems to support my theory that it was all a temporary firewall block. But, in the long run, I don’t much care, since it’s fixed now. One less thing to figure out. 🙂
The mail client that I use has an “unread messages” feature, which aggregates the unread messages from all of my various mail folders. I have hundreds of mail folders and subfolders, and much of it is from mailing lists that I seldom, if ever, read. This morning I had 23,000 unread messages, roughly.
This morning, among other things, I got caught up on everything. This involved admitting that some of those lists will never get read, ever, and unsubscribing from them. For other lists that I occasionally read, I marked them read up to the present, and we’ll see how they go. Others, I remained subscribed, but had the rule that sorts them into folders also mark them as read, so that I can read them if I choose, but they won’t have a tally of how far behind I am.
And of course I deleted many thousands of messages that there’s no chance I’ll ever get to.
So, as of this moment, I am all caught up on email. I have no illusion that it’ll stay this way, but at least the unread smart folder will be slightly useful for a few days. At least, so I can hope.