The Email Authority
There can be only one
Home
Tools
Blog
Services
Contact
Email Lookups
Enter Domain or IP
A Record
MX Record
SPF Record
PTR Record
Total Email Report
Recent
Blog
Posts
Testing SMTP
Email Feedback Report for IP
Temporary and permanent errors
Reading message headers
Forwarding to home addresses
How to read a bounce message
What is a Border MTA?
How Email Works
The Basics
Client set up: POP3/IMAP/SMTP
DNS
Client/server
DSN/NDR and how to read them
I cant send email: SPF/PTR/RBL
When all else fails
Tools
MX lookup
SPF Checks
A Record Check
Reverse DNS lookup
Email Trace
Bounce message reader
Recommended Services
Email Hosting
Website hosting
Anti-Spam
Email Encryption
