Improved email list segmentation performance

We re-wrote some code tonight that allows campaigns sent to segmented email lists using the "Filter/Send" feature process about 10x faster than normal. Additionally, our capacity for handling complex and very large segments is much greater now.

Previously, segmenting a list of 2 million email addresses, where the resulting segment was 1.5 million email addresses would cause memory errors on our end. But now, you can segment your very large email lists to your heart's content, and JangoMail will handle it fast and efficiently.

Screenshot of email list segmentation process

For more detail on JangoMail's advanced email list segmentation capabilities, see this PDF tutorial.