3 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
DKIM public key for selector "constantcontact" of a domain: looks up constantcontact._domainkey.<domain> (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (...
Does the domain's SPF record authorise constantcontact to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for constantcontact's include/ip mechanisms, returning yes/no, the matching mechanism and the...
Bulk spf authorizes constantcontact: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrich...