DNS and Email Administration
This course focuses on the practical relationship between domains, DNS and reliable business email.
DNS Records
- A, CNAME, MX and TXT records
- TTL and propagation
- Nameservers and DNS providers
Business Email
- SMTP and IMAP basics
- Mail routing and authentication
- Application and website email
Deliverability
- SPF, DKIM and DMARC
- Common rejection and spam issues
- Testing and troubleshooting workflow