Lately I’ve been helping a missionary find an easy solution to keep in touch with those who support him and his wife when they are out “in the bush.” After discussing the options, we settled on a WP blog which includes the ability to email in a post and then send out notification via email that the site had been updated. To solve this, I installed the Update Notify plugin and use a modified wp-mail.php to allow him to post into different categories as well as add photos to his posts via attachments.
The current problem I’m dealing with is that for some reason when a post comes in via email, it doesn’t trigger the Update Notify plugin. I tried it with the original wp-mail.php as well as the modified one and neither of them trigger the plugin. So, I’m searching for the answer for the time being, but it’s been 3 days of troubleshooting to get to this point even. It’s getting tiring. I haven’t even gotten to the photo album he wants yet either and I’m not so sure that’s going to go in smoothly. I wanted to save the hard part for last. Grr..

Heya Nate, have you had much more luck getting your update notify working?
No, I haven’t. It’s still not working properly and I’m not finding any help from the WordPress community on it either. It’s somewhat frustrating.
What’s the problem you’re having? It just won’t trigger a mail, or are you seeing an error message? (I wrote update-notify).
Gudlyf and JohnBlade, here’s the problem and what I’ve done to narrow down where it stems from:
Problem: When I email a post in (using the “secret email” method either native to WP or using JohnBlade’s plugin), the email does get posted, however the recipients on my update-notify list do not get an email sent to them. However, when I post using the admin (like a normal WP user would), it sends it out fine.
Troubleshooting:
1) I removed JohnBlade’s plugin (because I didn’t realize WP had their own email post ability). Result: same issue.
2) I tried a different plugin/subscription method rather than the update-notify plugin. Result: same issue.
I would rather use Gudlyf’s plugin because it makes more sense and is easy to use for our purposes, so I reinstalled it.
So, that’s how I’ve come to the conclusion that there must be a breakdown between the mailing functions and the posting functions somewhere in the core WP code.
Let me know if you need other details or want to take a look at the current install. I’d be happy to give you what you need to help me fix this issue.
Oh, and JohnBlade, I’d love to use your plugin because of the ability to post in different categories through email. That’s the main reason I want to use it. But I figured your plugin wasn’t the one causing the issue, so for now I removed it until I fix the real cause.