Relay Outgoing SMTP Mail through Vertrauen

Synchronet v3.20d-Win32 (install) has been released (Mar-2025).

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====== Relay Outgoing SMTP Mail through Vertrauen ======

**Problem:**\\
Your ISP restricts or blocks //outbound// connections to TCP port 25 so you are unable to have the Synchronet [[server:Mail]] Server perform //Direct Delivery// of email messages to public mail (SMTP) servers which require mail delivery on TCP port 25.

**Solution:**\\
Use [[bbs:Vertrauen]]'s Synchronet Mail Server (on TCP port 587) to relay your outbound Internet mail.

**How-to:**
  - If you do not already have a QWK networking account on Vertrauen, [[howto:dove-net|create one]].
  - If running [[monitor:sbbsctrl|Synchronet Control Panel for Windows]], shut it down.
  - Add ''RELAY_TX'' and ''RELAY_AUTH_PLAIN'' to the ''Options'' key value in the ''[mail]'' section of your ''[[dir:ctrl]]/[[config:sbbs.ini]]'' file. Example: ''Options = ALLOW_POP3 | RELAY_TX | RELAY_AUTH_PLAIN''
  - Edit the following keys in the ''[mail]'' section of your ''[[dir:ctrl]]/[[config:sbbs.ini]]'' file:

  RelayServer=mail.synchro.net
  RelayPort=587
  RelayUsername=your BBS's QWK-ID
  RelayPassword=your QWKnet account password
  
Alternatively, if you using [[monitor:sbbsctrl|Synchronet Control Panel for Windows]], you can use the SBBSCTRL:Mail->Configure menu option to make the configuration changes and then hit the 'OK' button:

{{:howto:sbbsctrl_vert_relay_cfg.png|Synchronet Mail Server configuration for relaying through Vertrauen}}

Note: the "Use Relay Server" radio button must be checked on the "SendMail" tab for the "Relay" tab shown above to appear in the configuration dialog box.
  
**Policy:**\\
This relay service can be terminated for one or all clients for any reason at any time. Most notably, if you send SPAM through Vertrauen, you will lose all access to [[bbs:Vertrauen]]'s services, including this one. Your relayed mail messages are not private and there cannot be any expectation of privacy.

===== See Also =====
  * [[:howto:|howto index]]

{{tag>}}

Trace: • Clean-Up • Use BinkD with Synchronet and SBBSecho • Configurando Fidonet • Barren Realms Elite • Relay Incoming SMTP Mail through Vertrauen • Use Fail2Ban on GNU/Linux to block botnet's attacks • Synchronet/DSZ "Hack" of 1993 • Instalación UNIX/Linux