Many businesses struggle with email deliverability because they don't properly configure SPF, DKIM, and DMARC records. This results in emails landing in spam folders or being rejected outright.
Offer a guided setup wizard that validates domain records and provides clear instructions for DNS updates. Include ongoing monitoring to alert users of configuration drift.
Charge SMBs and startups a monthly fee for the setup service and ongoing monitoring. Position it as essential infrastructure for email marketing and transactional emails.
The MVP could be a simple wizard with DNS validation and instructions. Add monitoring and alerts as the next feature.
The biggest risk is competing with free tutorials, so focus on ease of use and saving time over doing it manually.