Check SPF, DKIM, DMARC, MX records and reverse DNS. Find out why your emails land in spam.
SPF (Sender Policy Framework) prevents email spoofing by listing authorized mail servers. DKIM (DomainKeys Identified Mail) adds a cryptographic signature. DMARC (Domain-based Message Authentication, Reporting and Conformance) specifies what to do with emails that fail SPF/DKIM. MX records define which servers accept email for the domain.