greylisting

Here are 4 public repositories matching this topic...

yaroslaff / grey-verifier

Verify email(s) using correct SMTP conversations (HELO / MAIL FROM /RCPT TO)

verify spam list mail email domain validate smtp bulk antispam greylist grey verifier maillist mailfrom rcptto greylisting

Updated Jul 18, 2024
Python

Anton-Babaskin / postfix-postgrey-whitelist

Star

Manage Postfix & Postgrey client whitelists on any Debian/Ubuntu mail server bulk import, CIDR/IPv6, SPF-based cloud ranges, fleet auto-sync

bash devops whitelist postfix sysadmin mail-server postgrey mail-in-a-box email-deliverability greylisting

Updated Jul 30, 2026
Shell

fabriziofiorucci / ngx_http_greylist_module

Star

A native C dynamic module for open-source NGINX that provides pattern-based rate limiting with automatic client greylisting.

nginx greylisting

Updated Apr 22, 2026
C

api-evangelist / email-verifier-api

Star

Email Verifier API — independent third-party profile of a public API surface, by API Evangelist. Email Verifier API is a real-time email verification service offering a 16-point engine that validates deliverability through syntax checking, DNS / MX lookups, real-time SMTP handshakes, mailbox existence probing, catch-all and greylisting detection, d

email-verification deliverability apis-json greylisting lead-validation catch-all-detection bounce-prevention smtp-check disposable-detection spam-trap-detection role-account-detection typo-suggestion b2b-lead-scoring

Updated Aug 30, 2026

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