smtp server q&a webinar
TRANSCRIPT
SMTP Server Q&A
How SMTP server works
Agenda
• How SMTP server works?• Setting up for receiving• Setting up for sending• What is RBL (DNSBL) and how it works?• How SMTP server checks incoming message?• Avoiding spam traps
How SMTP server works
Setting up server for receiving
1. Set up SMTP server2. Set up static IP on the server computer3. Check your routers to make sure port 25 is
open4. Make sure your external (router) IP is static5. Point all IP addresses for MX records of all
domains you want to control to your static IP address
1. Static IP on server PC
2. Check external routers
4. Set up DNS zone file with MX record
Setting up server for sending
1. Perform 1-5 above2. Add reverse DNS (PTR) lookup (ask your ISP)3. Add SPF4. Make sure your external IP is not listed in RBL
What is reverse DNS check
Check your reverse DNS
How SPF records are checked
Setting up SPF records
How RBL verification works
How to check your IP in RBL servers
SMTP server checks