Speed Smtp Scanner V2.5 Free Download šÆ Latest
Using a scanner against any IP you do not own is a crime. Penalties include:
Based on descriptions from various download sites and user forums, here are the claimed features of Speed SMTP Scanner V2.5: Speed Smtp Scanner V2.5 Free Download
| Feature | Description |
|---------|-------------|
| High-Speed Multi-Threading | Scans thousands of IPs per second using adjustable thread counts (up to 500+). |
| CIDR & Range Support | Accepts single IPs, IP ranges (e.g., 192.168.1.1-255), or CIDR notation (e.g., 203.0.113.0/24). |
| SMTP Authentication Testing | Supports LOGIN, PLAIN, CRAM-MD5 mechanisms; includes built-in weak password lists. |
| Open Relay Check | Tests using common relay test emails (e.g., test@example.com to test@test.com). |
| Proxy Integration | Can route scans through SOCKS4/5 or HTTP proxies to hide the source IP. |
| Result Export | Saves working servers, open relays, and cracked credentials to .txt or .csv files. |
| Banner Grabbing | Retrieves SMTP server banners (e.g., ESMTP Exim, Microsoft ESMTP). |
| Geo-IP Filtering | Option to target specific countries or exclude certain ranges. |
| Lightweight & Portable | Under 2 MB, no installation required ā runs directly from a USB drive. | Using a scanner against any IP you do not own is a crime
The scanner issues the following commands: The scanner issues the following commands: MAIL FROM:
MAIL FROM: <test@example.com>
RCPT TO: <test@test.com>
If the server returns 250 OK or similar for RCPT TO to a domain that is not its own, the server is an open relay.
Downloading Speed SMTP Scanner V2.5 from unverified sources carries significant risks:

