Open Rate Dropped Greatly, over 25% lower, after starting to use Real Time journeys
Some things you might want to look into:
- Are the numbers for segments for OB vs RTM showing same/similar numbers?
- Dynamics marketing has a strange (terrible) way of managing hard bounces, where it suppresses them for 6 months then just releases them back in the pool. This is a deliverability disaster waiting to happen, basically means you're in danger of sending to a load of dead email addresses all at once which flags you as someone who doesn't maintain your send lists - worth checking to see that your hard bounces are being suppressed in RTM, if you have a low delivery rate (tbh - don't really want anything lower than 99%) then they're probably not being excluded
- Find the sender IP of your OB emails and your RTM emails and check to compare sender score, realtime blocklists etc