Email verification API
Email verification API for signup flows
Open articleTopic hubs for developers who need one clear path through validation, SMTP checks, disposable detection, scoring, and integration details.
Core integration, response shapes, keys, limits, and platform docs.
Email verification API for signup flows
Open article10 more articles in this section are in the sitemap and available from direct URLs.
MX, domain health, and validation techniques before SMTP.
Check whether a domain can receive mail before you accept the address.
Open article5 more articles in this section are in the sitemap and available from direct URLs.
Mailbox existence, ping checks, and deliverability workflows.
Use SMTP probing when you need stronger mailbox signals than MX alone.
Open article8 more articles in this section are in the sitemap and available from direct URLs.
Throwaway inbox detection and provider list hygiene.
Block throwaway inboxes before they reach your signup table.
Open article5 more articles in this section are in the sitemap and available from direct URLs.
Catch-all domains, scoring, and quality decisions.
Detect domains that accept every mailbox and return less reliable deliverability signals.
Open article5 more articles in this section are in the sitemap and available from direct URLs.
Shared inboxes, provider type, and real implementation examples.
Flag shared inboxes like info@, support@, and sales@ before they enter your CRM.
Open article6 more articles in this section are in the sitemap and available from direct URLs.