By Matt and 3 others4 authors18 articles
What are MX Records?
Can I use ImprovMX SMTP to send Bulk Mail / create Mailing Lists?
Can I Whitelist an Email Address?
Can I turn off spam protection?
How to view email headers
Regex Email Forwarding
About ImprovMX Spam Filtering
Using MX Records of Multiple Services
What are the sending/receiving limits?
Redirecting an alias to multiple email addresses
Why are my emails landing in spam?
Gmail SMTP FAQ
Error codes returned by ImprovMX’s SMTP servers
Why doesn't ImprovMX use MXS domains anymore?
What are the allowed attachments?
Why does ImprovMX need SPF?
Some emails are refused because of Spamhaus, why?
What does “Invalid DKIM signature” mean?