how do i contact comcast about email problems

We’re deploying Microsoft Defender for Endpoint and aligning it with PCI-DSS v4.0 compliance for our UPI-first fintech brand UPYUGO Technologies.

Our focus:

• Shield transactional emails (KYC, OTP, payment alerts)
• Lock down phishing/spam with custom quarantine logic
• Implement Defender strict policy + advanced anti-spam (MDO)

Would love feedback on:

• Best practices for Defender ATP in regulated environments
• DMARC, SPF, DKIM recommendations
• Log forwarding to Sentinel or Azure Monitor

Cheers,

email address removed for privacy reasons