Sync On Arrival for ThunderBird

If you're looking for a reliable email software, Thunderbird is definitely one to consider. One of its key features is its ability to download message headers and, if configured, bodies immediately upon detecting new messages in an IMAP folder. This is incredibly convenient for those who need to stay on top of their emails and want to avoid constantly refreshing their inbox.

While Thunderbird promises to download messages on biff, this feature sometimes falls short. Often, the software won't download the message headers until the folder they're in is opened. However, don't let that deter you from using Thunderbird. Its other benefits make up for this slight drawback.

In addition to keeping your inbox updated, Thunderbird also ensures that Saved Search folders are always up-to-date, even if "search online" isn't checked. This is especially useful if you have a Saved Search configured to show all of your unread email.

Overall, Thunderbird is a great email platform that is easy to use and reliable. Its "download_on_biff" feature may need some tweaking, but its other features more than make up for it. To use this software, all you need is Thunderbird 1.0 or later.