Mail Access Checker By Xrisky V2 Updated May 2026

Mail Access Checker by Xrisky v2 (Updated) presents a pragmatic, faster, and more robust approach to bulk email verification, blending multiple verification techniques and operational safeguards. While technically capable, its responsible deployment requires attention to legal, ethical, and privacy implications, and an understanding of modern email provider defenses that constrain definitive validation.

If you run a mail server, you should assume tools like xRisky v2 are scanning you. Here is how to block them:

In the wild, the Mail Access Checker v2 is almost always paired with a "combolist" from a recent breach. Here’s a typical attack chain:

The v2 update is particularly dangerous because it includes a "harvest mode" that logs not just validity but also inbox storage usage, account age, and even the last login IP – metadata that helps attackers prioritize high-value targets. mail access checker by xrisky v2 updated

If you manage email infrastructure or personal accounts, take these steps immediately:

By running the checker against your own mail server (with permission), you can test if your rate limiting, account lockout policies, and blacklisting mechanisms are effective against credential stuffing.

Requirements: Python 3.6+, socks, pyopenssl, dns.resolver Mail Access Checker by Xrisky v2 (Updated) presents

git clone https://github.com/xrisky/mailaccesschecker-v2
cd mailaccesschecker-v2
pip install -r requirements.txt

Basic syntax:

python mail_checker.py -e target@example.com

Check email existence via SMTP:

python mail_checker.py -e victim@target.org --smtp-check

Validate credentials (Gmail):

python mail_checker.py -e user@gmail.com -p pass123 --provider gmail

Bulk check with proxies:

python mail_checker.py -l emails.txt -o valid.txt --threads 10 --proxy proxies.txt

The server responds with one of three states:

Legitimate use cases exist, such as a company verifying that terminated employees' accounts are truly disabled. However, the v2 update includes features (like stealth timing delays and fake User-Agent strings) that strongly suggest an adversarial design. If you run a mail server, you should