Winlink uses POP or IMAP

[Wayne Spivak]

I have Winlink Express on my Windows box and PAT on my MAC.

It seem that the both products are using POP3 vice IMAP.

Anyway to change, or make one product not delete off the Winlink server email obtained on let's say PAT?

Thanks.

[Bob Stephens AF9W]

Neither supports IMAP and likely never will due to the complexity and server storage requirements.

[Wayne Spivak]

Thank you Bob.

To that end, as far as POP3 is concerned, is there a way to tell Winlink not to delete the email from the server (or is your answer similar to the IMAP issue)?

Thanks

W

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Regards,

Wayne Spivak
+1-516-221-3306

[Martin Hebnes Pedersen]

Hi!

The winlink system does not use either to exchange messages. It's a protocol called FBB Forwarding Protocol v2, aka "Open B2F". You can read more here:

* https://www.f6fbb.org/protocole.html

* https://winlink.org/B2F

IIRC the protocol does not allow retaining the message on the remote end after it has been accepted for download, unless the client reports an error indicating that the message transfer failed. Error reporting is done at the session level, meaning you don't get to exchange any other messages in either direction if you were to fake an error in order to retain a message on the remote server.

We would have to extend the protocol in order to support such a feature, meaning it would need to be coordinated with all/most Winlink software out there.

If you don't mind me asking. What are you trying to achieve? It might be possible to find another solution that would fulfill your needs :)

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73 de LA5NTA / Martin

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[Wayne Spivak]

I run 2 systems, a Win 11 as my main everyday computer and a MAC for travel.  It would not be a good operating procedure to have two disparate mail stores.

Thanks Martin.

[Jack Glazko]

Hi Wayne,

As you've noted, Winlink isn't designed as a permanent message store, but a store and forward server.

It seems like you could set up your own server in this case where you could store the messages? Then you could access them with multiple client systems without having to impact the amount of Winlink storage or software.

Jack Glazko W9TNC

---

Are you ready for The Great Shakeout tomorrow? Winlink has a part in this. See https://winlink.org/content/great_shakeout  or Shakeout.org for more information.

[Dr. Torsten Harenberg]

Am 18.10.23 um 12:36 schrieb Wayne Spivak:

> I run 2 systems, a Win 11 as my main everyday computer and a MAC for
> travel.  It would not be a good operating procedure to have two
> disparate mail stores.

Maybe just put the local Pat storage directory [1] on a cloud storage
like Google Drive. That should do the trick without much effort.

73 DL1THM/Torsten

[Wayne Spivak]

Winlink has the ability to forward incoming messages.  PAT, to the best of my knowledge doesn't.

One could always CC an address on outgoing messages (neither system to my knowledge allows a default CC, so you have to remember and in an emergency situation, that's one more item you don't want to think about).

Not ideal, but it would work.

[Dr. Torsten Harenberg]

Am 18.10.23 um 13:14 schrieb Wayne Spivak:
> 1.  There may not be Internet Access.

shouldn't be an issue, as soon as you are back within internet coverage,
things are being sync'ed. You will not run both machines at the same
time with one being offline, won't you?

> 2.  WinLink and PAT have different mail store schemas.

That could very well be. I can only speak about Pat. Pat runs on all
OSes and would most probably support that. The Winlink FAQ [1] says that
Winlink Express supports it as well. But if you wanna mix Winlink
Express and Pat, and have all in sync, you're probably on your own.

As already mentioned, Winlink (the mail system) is being invented for
e-mail access at remote locations using low-bandwidth and high-latency
HF radio links. That excludes features IMAP has.

You could ask your mail partners to Cc to a regular mail address and use
that to keep your mails in sync. Thunderbird for example supports
offline usage. Naturally, this requires some "mail discipline" by
everyone involved.

Or approach the Winlink team. They have a feature

"""
Alternate (temporary forwarding) e-mail

E-Mail address to which mail received by your account will be forwarded.
This may be a valid internet e-mail address, a Winlink tactical address,
or callsign. The entry must include the prefix "SMTP:" if the entry is
an internet email address. Leave blank to disable forwarding and allow
normal delivery.
"""

already. Maybe they want to implement a permanent
"copy-incoming-messages" feature in the system.


73 DL1THM/Torsten



[1]
https://winlink.org/sites/default/files/download/wl2k_faq_20230311.pdf
Q11695

[Wayne Spivak]

Thank you Torsten, I'll look into it.

73 KC2NJV Wayne

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[Martin Hebnes Pedersen]

Yes, if you run Pat on both machines you can use any file sync service to keep your mailbox in sync :) This is the core design principle in Pat's mailbox implementation.

https://github.com/la5nta/pat/wiki/The-mailbox-directory#mailbox-synchronization

I use Syncthing to keep my mailbox in sync between all my devices running Pat (mac/win machines, an android phone, a couple raspberry pi). The beauty with Syncthing is that it will work even on an isolated local network in a grid-down scenario.

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73 de LA5NTA / Martin

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[Wayne Spivak]

Thank you