Blog-by-Email

I did a search for this and didn’t see anything, but if I missed it, please feel free to direct me elsewhere. ??

I cannot seem to get the blog-by-email to work. I have set up an email account for the purpose, which I have checked directly to ensure that it is, indeed, working. I have set up the blog-by-email option in WordPress’s admin area, with the same specifications. I have installed the wp-cron plugin and the wp-cron-mail plugin. When I send the messages, they are going through to the email account, but they are not appearing as blog posts.

Am I overlooking something? Does it just take a really long time for them to appear? (This has been several hours.) Does my checking the email for that address affect anything (i.e. does the email need to be either read or unread in order for WP to have access to it)?

Thanks in advance.