Mail2News Gateway

Post to Usenet newsgroups using your email client

Anonymous Web Posting Gateway (m2n.tcpreset.net)

Prefer posting to Usenet directly from your browser without configuring an email client? Use our zero-log, privacy-preserving web gateway:

Launch Web Gateway → m2n.tcpreset.net

Mail2News Gateway Overview

The Mail2News gateway bridges email and Usenet NNTP protocols, enabling posting without dedicated newsreader software.

Gateway Endpoint

The active Mail2News address for posting is:

mail2news@mail2news.tcpreset.net

All articles are securely injected into Usenet via NNTP over TLS (NNTPS):

snews://news.tcpreset.net:563

Features

Address Format Specification

Basic Syntax

mail2news-YYYYMMDD-newsgroup@mail2news.tcpreset.net
Example: Post to comp.os.linux.misc on September 21, 2026: 
mail2news-20260921-comp.os.linux.misc@mail2news.tcpreset.net

Privacy-Preserving Variant

Obfuscate sender address ("@" → "<AT>", "." → "<DOT>"):

mail2news_nospam-YYYYMMDD-newsgroup@mail2news.tcpreset.net

Cross-Posting

Post to multiple newsgroups (max 3) using "=" separator:

mail2news-YYYYMMDD-group1=group2=group3@mail2news.tcpreset.net
Example: Cross-post to three groups: 
mail2news-20260921-comp.os.linux.misc=alt.os.linux=comp.os.unix@mail2news.tcpreset.net

Temporal Constraint: Stamped addresses are strictly time-bounded to prevent replay attacks. The date token must fall between 168 hours in the past (7 days) and 48 hours in the future (2 days) relative to server UTC. Expired or arbitrary dates trigger immediate rejection.

Gateway Policies & Abuse Controls

To preserve service reliability, user privacy, and Usenet network hygiene, the Mail2News gateway enforces the following built-in controls:

1. Dated Recipient Tokens (Temporal Window)

2. Deduplication and Anti-Replay Protection

3. Crossposting Limits

4. Payload Size Ceiling

5. Anti-Timing & Correlation Defense

6. Privacy & Client Fingerprint Sanitization

Email Client Configuration

Gmail (Web)

  1. Compose → Enter mail2news address in "To:"
  2. ⋮ (three dots) → "Plain text mode"
  3. Compose subject and message → Send

Microsoft Outlook

  1. New Message → Enter mail2news address
  2. Format → Plain Text
  3. Compose and send

Mozilla Thunderbird

  1. Write → Enter mail2news address
  2. Options → Delivery Format → Plain Text Only
  3. Send

Apple Mail

  1. New Message → Enter mail2news address
  2. Format → Make Plain Text (⇧⌘T)
  3. Send

Proton Mail

  1. New Message → Enter mail2news address
  2. Editor toolbar → Plain Text
  3. Send

Command Line

echo "Message body" | mail -s "Subject" mail2news-20250425-alt.test@mail2news.tcpreset.net

Usage Examples

Use Case Address
Standard post mail2news-20250425-alt.test@mail2news.tcpreset.net
Obfuscated sender mail2news_nospam-20250425-comp.os.linux.misc@mail2news.tcpreset.net
Cross-post (3 groups) mail2news-20250425-alt.test=misc.test=comp.test@mail2news.tcpreset.net

Complete Message Example

To: mail2news-20250425-comp.os.linux.misc@mail2news.tcpreset.net
From: user@example.com
Subject: vm.swappiness tuning query

What value for vm.swappiness on 16GB desktop (Ubuntu 24.04)?
Current: 60 (default). Workload: development + browsing.

Thanks.

Troubleshooting

Common Rejection Causes

Error Cause Solution
Invalid date Timestamp outside -168h / +48h window Use current YYYYMMDD
No valid newsgroups Typo or non-existent hierarchy Verify newsgroup name
Crosspost limit exceeded More than 3 groups Reduce to ≤3 groups
Content garbled HTML formatting Use plain text mode

Best Practices

Debugging

If post doesn't appear within 5 minutes:

  1. Check bounce messages in inbox
  2. Test with alt.test first
  3. Verify newsgroup exists via NNTP LIST command
  4. Contact: abuse (a) tcpreset.net with headers