FAQ
- Why do I receive an error message when sending emails with certain senders?
- What is the difference between blocked, rejected and quarantined mails?
- How can I request a delisting?
- Enhancing RFC-compliance for message header from addresses
- How do I set up allow listing for infomail?
- How do I recognize that a allow list entry has let the e-mail through?
Pro Tips
- Reporting False Positives and False Negatives
- Mail Bombing Protection
- Handling Mail Delivery Issues to the U.S. Military
- General tips for using the deny/allow list
- Understanding message headers
- Using RegExp and collective terms