I will setup dns records like spf dkim dmarc mx a ptr

SPF, DKIM, and DMARC are vital for email security and delivery. SPF prevents spoofing by listing authorized mail servers. DKIM adds digital signatures, ensuring email integrity. DMARC combines SPF and DKIM, allowing domain owners to control email handling. This trio enhances security & reduces spam.

MX (Mail Exchange) records specify email servers responsible for receiving emails for a domain. CNAME (Canonical Name) records alias one domain name to another. TXT records store arbitrary text data, often used for SPF, DKIM, and DMARC configurations.

If you've already configured your domain's SPF, DMARC, and DKIM records, you typically won't need to set up additional DNS records specifically for new email addresses. These domain-based records help authenticate and secure your email communication, regardless of the individual email addresses.

Monitoring your sending reputation is best done with trusted tools like MxToolbox. Additionally, consider utilizing free services like SenderScore or SenderBase for regular reputation checks. These tools offer insights crucial for maintaining email deliverability.

In the majority of cases, reputation repair is possible. Rare exceptions occur when there's no improvement in sending practices or data hygiene. However, with proactive changes, reputation repair is typically achievable.