WEwesturner·Jan 11, 2026
https://github.com/x011/smtp-tunnel-proxy :
> A high-speed covert tunnel that disguises TCP traffic as SMTP email communication to bypass Deep Packet Inspection (DPI) firewalls
In Iran is likely jamming Starlinkx011
smtp-tunnel-proxy
Python2026–2026
x011 / smtp-tunnel-proxy
smtp-tunnel-proxy
A high-speed covert tunnel that disguises TCP traffic as SMTP email communication to bypass Deep Packet Inspection (DPI) firewalls.
2Distinct people
2Mentions
0Explicit recommenders
1.8KGitHub stars
What to know before exploring
What it is
A high-speed covert tunnel that disguises TCP traffic as SMTP email communication to bypass Deep Packet Inspection (DPI) firewalls.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by 6-hour interval2 dated mentions
Observed mentions: 2026-01-07 00:30:09 UTC to 2026-01-11 14:21:32 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Jan 7, 00:00 | 2026-01-07 00:00:00 UTC | 2026-01-07 06:00:00 UTC | 1 | 1 | 0 |
| Jan 7, 06:00 | 2026-01-07 06:00:00 UTC | 2026-01-07 12:00:00 UTC | 0 | 0 | 0 |
| Jan 7, 12:00 | 2026-01-07 12:00:00 UTC | 2026-01-07 18:00:00 UTC | 0 | 0 | 0 |
| Jan 7, 18:00 | 2026-01-07 18:00:00 UTC | 2026-01-08 00:00:00 UTC | 0 | 0 | 0 |
| Jan 8, 00:00 | 2026-01-08 00:00:00 UTC | 2026-01-08 06:00:00 UTC | 0 | 0 | 0 |
| Jan 8, 06:00 | 2026-01-08 06:00:00 UTC | 2026-01-08 12:00:00 UTC | 0 | 0 | 0 |
| Jan 8, 12:00 | 2026-01-08 12:00:00 UTC | 2026-01-08 18:00:00 UTC | 0 | 0 | 0 |
| Jan 8, 18:00 | 2026-01-08 18:00:00 UTC | 2026-01-09 00:00:00 UTC | 0 | 0 | 0 |
| Jan 9, 00:00 | 2026-01-09 00:00:00 UTC | 2026-01-09 06:00:00 UTC | 0 | 0 | 0 |
| Jan 9, 06:00 | 2026-01-09 06:00:00 UTC | 2026-01-09 12:00:00 UTC | 0 | 0 | 0 |
| Jan 9, 12:00 | 2026-01-09 12:00:00 UTC | 2026-01-09 18:00:00 UTC | 0 | 0 | 0 |
| Jan 9, 18:00 | 2026-01-09 18:00:00 UTC | 2026-01-10 00:00:00 UTC | 0 | 0 | 0 |
| Jan 10, 00:00 | 2026-01-10 00:00:00 UTC | 2026-01-10 06:00:00 UTC | 0 | 0 | 0 |
| Jan 10, 06:00 | 2026-01-10 06:00:00 UTC | 2026-01-10 12:00:00 UTC | 0 | 0 | 0 |
| Jan 10, 12:00 | 2026-01-10 12:00:00 UTC | 2026-01-10 18:00:00 UTC | 0 | 0 | 0 |
| Jan 10, 18:00 | 2026-01-10 18:00:00 UTC | 2026-01-11 00:00:00 UTC | 0 | 0 | 0 |
| Jan 11, 00:00 | 2026-01-11 00:00:00 UTC | 2026-01-11 06:00:00 UTC | 0 | 0 | 0 |
| Jan 11, 06:00 | 2026-01-11 06:00:00 UTC | 2026-01-11 12:00:00 UTC | 0 | 0 | 0 |
| Jan 11, 12:00 | 2026-01-11 12:00:00 UTC | 2026-01-11 18:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
2 sourcesShow HN: SMTP Tunnel – A SOCKS5 proxy disguised as email traffic to bypass DPI
A fast SOCKS5 proxy that tunnels your traffic through what looks like normal SMTP email, bypassing Deep Packet Inspection firewalls.
How it works:
- Client runs a local SOCKS5 proxy (127.0.0.1:1080)
- Traffic is sent to server disguised as SMTP (EHLO, STARTTLS, AUTH)
- DPI sees legitimate email session, not a VPN/proxy
Features:
- One-liner install on any Linux VPS
- Multi-user with per-user secrets and IP whitelists
- Auto-generated client packages (just double-click to run)
- Auto-reconnect on connection loss
- Works with any app that supports SOCKS5
Tech: Python/asyncio, TLS 1.2+, HMAC-SHA256 auth
GitHub: https://github.com/x011/smtp-tunnel-proxy
140 points · Open discussion