Why are you rejecting my email?
Any mail rejected or not delivered to the end user will always be rejected with a bounce back by our mail clusters.
These bounce backs contain helpful information to trace problems when sending email.
The most common reasons we reject email are found below:
- Greylisting
- Reverse DNS
- RBL Checks
- SPF
- Date from the past
- Maximum attachment size
- Mailbox Full
- User doesn't exist