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Welcome to the paclink-unix distribution.


paclink-unix is a UNIX/Linux client for the Winlink 2000 ham radio email system. It allows the use of email clients to compose & read Winlink messages. Currently mutt, claws-mail, rainloop & thunderbird are actively supported but any mail client that uses IMAP should work.

paclink-unix was originally written by Nicholas S. Castellano N2QZ

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

See the COPYING file for the complete license or click on this link.

Installation notes can be found at this link

Forum & code repository

Installation tips

  • To get a copy of the repository using git:
git clone
  • or using wget to create a zipped tarball
# To create a tar zipped file, rmsgw.tgz
wget -O paclink-unix.tgz

# To create a directory with source files from the zipped tarball
wget -O - | tar -xz

Recent News

01/17/2020 version 0.10
  • Fix timeout when transfering many or large files.
  • Add gridsquare requirement to config and display warning if not configured.
    • Gridsquare is required for linBPQ32 fix, which is used instead of QTC
  • Get rid of all console output in sigalrm() routine which causedg spurious output on timeout detect.
  • Detect if ax25 socket has been closed when waiting for a response between outbound & inbound parsing.
12/26/2019 version 0.9
  • The QTC line is not output anymore due to linBPQ32 crashing when it tries to parse it.
    • To be closer to what Winlink Express looks like that line now looks like the following.
    • This means that gridsquare= needs to be set in the configuration file.
; VE7SPR-10 DE N7NIX (CN88nl)
5/9/2019 version 0.8
  • Fixed upper casing password in hash_input
    • Multi case passwords now work.
4/27/2018 version 0.7
  • Peer-to-peer working with Airmail & Winlink Express

Other files you might want to peruse:

File name Description
AUTHORS Who's involved
ChangeLog Detailed list of changes
NEWS Summary of feature changes and fixes
COPYING GPL version 2


Winlink client for Linux







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