Synchronet v3.19b-Win32 (install) has been released (Jan-2022).

You can donate to the Synchronet project using PayPal.

BinkIT - FidoNet Mailer

BinkIT is a simple BinkP BSO/FLO-style FidoNet Mailer, written for Synchronet in JavaScript (by Deuce). BinkIT may be used in place of BinkD or any other FidoNet mailer.


  • BinkP 1.1 support (except for the undocumented No Dupes mode)
  • Supports operation over TLS (binkps) for both inbound and outbound sessions
  • Supports BinkD compatible encryption
  • Supports secure CRAM-MD5 authentication
  • Full 5D address support
  • Creates semaphore files for TIC ( and Fido ( events automatically
  • FREQIT integration for file requests from subs
  • Nodelist support, can read the hostname and port number from a nodelist


If you've already configured SBBSecho v3, you may perform an automated install of BinkIT from a command prompt by running “exec/jsexec binkit install”.

This will update the ctrl/sbbsecho.ini file for you and setup the necessary Timed Events in SCFG, but you may need to edit the session passwords in sbbsecho.ini to match those expected by your links.

If your network links are not in FidoNet (i.e. reachable via the domain), you may need to specify a NodeList for that domain or specify Host values for those linked nodes.

Upgrade to BinkIT v2

If you've already setup BinkIT 1.x (e.g. using binkit.ini), after updating your exec/*.js and load/*.js files to the latest (including binkit.js v2.x), you'll need to migrate your binkit.ini and ftn_domains.ini settings in sbbsecho.ini. This can be done automatically by running “exec/jsexec binkit upgrade”.

If you wish to perform the merge by hand, here are the changes:

Old binkit.ini key New sbbsecho.ini key
root Capabilities [BinkP] Capabilities
root Sysop [BinkP] Sysop
[address] Password [node:address] SessionPwd
[address] Host [node:address] BinkpHost
[address] Port [node:address] BinkpPort
[address] Poll [node:address] BinkpPoll
[address] AllowPlainPassword [node:address] BinkpAllowPlainAuth
[address] AllowUnencrypted [node:address] BinkpAllowPlainText
[address] SourceAddress [node:address] BinkpSourceAddress

The domain sections keys are unchanged, but the domain sections now require a domain: prefix:

Old ftn_domains.ini section New sbbsecho.ini section
[name] [domain:name]

Once the upgrade is complete, all of the BinkIT and SBBSecho configuration parameters can then be viewed and modified using the EchoCfg utility.

Manual Setup

BinkIT should be configured both as a service and as Timed Events in SCFG.


Add the service in ctrl/services.ini:


Add 2 Timed Events in SCFG->External Programs->Timed Events:


║                         BINKOUT Timed Event                        ║
║ │Internal Code                   BINKOUT                           ║
║ │Start-up Directory                                                ║
║ │Command Line                    ?binkit                           ║
║ │Enabled                         Yes                               ║
║ │Execution Node                  1                                 ║
║ │Execution Months                Any                               ║
║ │Execution Days of Month         Any                               ║
║ │Execution Days of Week          All                               ║
║ │Execution Time                  00:00                             ║
║ │Requires Exclusive Execution    No                                ║
║ │Force Users Off-line For Event  No                                ║
║ │Native Executable               No                                ║
║ │Use Shell to Execute            No                                ║
║ │Background Execution            No                                ║
║ │Always Run After Init/Re-init   No                                ║

To have the BINKOUT event triggered automatically upon any outgoing FTN-mail, set the OutgoingSemaphore key in your ctrl/sbbsecho.ini file to ../data/ (requires SBBSecho v3.02 or later).


║                        BINKPOLL Timed Event                        ║
║ │Internal Code                   BINKPOLL                          ║
║ │Start-up Directory                                                ║
║ │Command Line                    ?binkit -p                        ║
║ │Enabled                         Yes                               ║
║ │Execution Node                  1                                 ║
║ │Execution Months                Any                               ║
║ │Execution Days of Month         Any                               ║
║ │Execution Days of Week          All                               ║
║ │Execution Frequency             24 times a day                    ║
║ │Requires Exclusive Execution    No                                ║
║ │Force Users Off-line For Event  No                                ║
║ │Native Executable               No                                ║
║ │Use Shell to Execute            No                                ║
║ │Background Execution            No                                ║
║ │Always Run After Init/Re-init   No                                ║

The execution interval determines the polling frequency.

Command-line options

The following options may be specified on the command-line:

  • -p poll any links with the Poll=Yes option after running a normal outbound scan.
  • -P poll any links with the Poll=Yes option and *do not* run a normal outbound scan.
  • -l [node] poll the specified node and *do not* run a normal outbound scan. Cannot be used with -p or -P. Multiple -l options may be specified on the same command-line.


The ctrl/sbbsecho.ini file holds the configuration settings of BinkIT.

BinkP Options

In the [BinkP] section of sbbsecho.ini:

  • Capabilities if set, changes the text in the M_NUL NDL line from the default of “115200,TCP,BINKP”. This field is not well documented.
  • Sysop if set, over-rides the sysop name (ZYZ) value (e.g. to send the sysop's real name instead of alias).

Each link should be specified as [node:<address>] section with the full 5D address (e.g.: “node:1:103/17@fidonet”) as the section name.

The following are all optional and allowed per node section:

  • SessionPwd sets the BinkP session password for the link (Usually the only required option)
  • BinkpPlainAuthOnly Forces outbound sessions with this link to use plain-password authentication (not CRAM-MD5). Defaults to false.
  • BinkpAllowPlainAuth allows this link to insecurely send the password on the connection. Defaults to false.
  • BinkpAllowPlainText allows this link to use an unencrypted (plain-text) session. Defaults to true.
  • BinkpSourceAddress the outbound FTN address to use for this link. Not normally needed, but can be used if multiple addresses are used in the same net with different passwords. Defaults to the “closest” FTN address to the link address.
  • BinkpPort TCP port to connect to when making an outbound connection on this link. Defaults to the port specified in the domain's nodelist, if configured, or the default BinkP port of 24554.
  • BinkpHost Internet host (IP address or hostname) to connect to when making an outbound connection on this link. If not specified, will first attempt to read from the nodelist if configured for the domain, then will use the DNS suffix, if specified using the “p.f.n.z.domain” style (e.g. domain name.
  • BinkpPoll This link will be polled any time -p or -P is specified on the command-line. Defaults to false.

For compatibility with links using the BinkP implementation in Mystic BBS version 1.12A39, you must set BinkpAllowPlainText=true.

For more details on the BinkP session-security related settings, see the documentation for sbbsecho.ini -> Node Sections.

Example sbbsecho.ini

Sysop=Henry Samueli

In the above example, 1:218/700 is a node you want to poll. If you create a second binkit event and add the -p (small p) option it will scan the outbound directories, send outbound mail and poll nodes that have Poll=yes option set. In this case 1:218/700@fidonet and 10:1/1@othernet will be polled and any new inbound mail will be picked up and outbound mail will be delivered. 1:2320/100@fidonet will not be polled, though if there is pending outbound, it will be sent.

In the case of 1:2320/100, let's say you have a need to route netmail to this node. In this case there is no automated polling to this node and anything that needs to be sent to this node via crash will be sent to with no password. If there is a nodelist, the port number will be used from the nodelist. In this example, the hostname is being overridden, so it won't use the nodelist or DNS to connect.

The network “othernet” will also be polled. In this case it will call out on port 24556 and the outbound root has been specified in the config. You can specify a domain wide outbound root in your sbbsecho.ini. It should be noted that [domain:othernet] should be defined in sbbsecho.ini with either a NodeList or DNSSuffix value.

If you check your outbound directory, do not be surprised if you see other outbound directories with extensions after them. For instance outbound.zyx.

Other Configuration


The first listed FTN address (in scfg->Networks->FidoNet->System Addresses) is used as the default address, and it's zone is used as the default zone. All addresses configured in SCFG are used for the M_ADR command to the remote.


BinkIT reads the ctrl/sbbsecho.ini file, possibly using the following pieces of information:

  • Outbound path (Outbound key)
  • Secure Inbound path (SecureInbound key)
  • Insecure Inbound path (Inbound key)
  • Mailer type (BinkleyStyleOutbound). BinkIT will exit with an error if this is not set.
  • Packer configuration (SigOffset, Sig, Pack, and Unpack keys in a archive:* sections).


BinkIT integrates FreqIT functionality, so the freqit.ini file is used.


Not technically a configuration file, the data/binkstats.ini file contains cumulative statistics about all inbound and outbound BinkP connections made by BinkIT.


The domain: sections in sbbsecho.ini are used for 5D support in BinkIT. Each domain: section defines an FTN domain. If no domains are specified, zones 1-6 are set to 'fidonet' with a DNSSuffix of ''.

Each domain section can have the following keys:

  • Zones a comma-separated list of zones present in this domain. When only a single domain lists a specific zone, that domain is used as the “default domain” for that zone.
  • DNSSuffix used for DNS nodelist lookups. If this file doesn't exist, is used for the fidonet domain.
  • OutboundRoot the root path for this domain, used for constructing outbound directories for this domain.
  • NodeList Full path to a nodelist file to use for this domain.

Example Domains



Callout to 3:330/1@fidonet started.
Connection to failed.

This error means that the linked node (3:330/1@fidonet in the example) is not DNS-resolvable. You'll need to use a nodelist for the fidonet domain or a “BinkpHost” value for that node (with the IP address or host name of the node) in your sbbsecho.ini file.

Sent M_ERR command args: Encryption required

This error means that the remote/peer doesn't support encryption and encryption is required. To loosen this requirement and allow a plain-text/un-encrypted session with this link, set BinkpAllowPlainText=true for that linked node in your sbbsecho.ini file.

See Also