SpellzCode — Email deliverability check pack: MX, SPF, DMARC, DKIM and score
https://agent-data-tools.revmesh2074.workers.dev/pack/email-deliverability?domain=github.comOverview
Email deliverability check for a domain in one call: MX records, SPF and its all-policy, DMARC and its policy, DKIM keys at the common selectors (Google, Microsoft, Mailchimp and others), MTA-STS, TLS-RPT and BIMI, with a 0-100 score, a grade and a list of fixes; optionally also checks one address (syntax, MX, disposable domain). Uses public DNS only and sends no mail. Use before a campaign, when mail lands in spam, or to vet a sender domain.