Subj : Proper dupe prevention
To : Paul Hayton
From : Tommi Koivula
Date : Sun Jan 31 2016 08:42 pm
Hi Paul.
31 Jan 16 21:52, you wrote to Wilfred van Velzen:
PH> On 01/30/16, Wilfred van Velzen pondered and said...
Wv>> Unfortunately it has been determined that fastecho always drops
Wv>> seen-by's when it imports messages from another zone. This can't
Wv>> be turned of by a configuration option.
Wv>>
Wv>> So for instance the link between Paul Quinn and Tommi Koivula,
Wv>> who both use fastecho, drops them in both directions. Tommi was
Wv>> thinking about moving to hpt though, the last time I spoke with
Wv>> him about this...
Wv>>
PH> I'm not sure this is correct so have replied in this echoarea so Paul
PH> et al. can comment.
PH> I'm using FE and as far as I can see it does not strip/drop seen-by's
PH> when messages are imported in via your Z2 feed in to my HUB system.
PH> In fact you can tell FE to keep seen-bys on a message base by message
PH> base basis. In my case I have everything set to retain/keep seen-by's
PH> indefinately.
Sorry Paul, but not true. You just cannot see it happening until you check
packets that are leaving from your system.
I investigated this, and it is also documented in fastecho.doc:
==== cut ====
When your system acts as outbound zonegate you may need to strip
all the SEEN-BY information present in your echomail for all messages
addressed out-of-zone. FastEcho is capable to do that simply by
enabling this feature (which is disabled by default). This can be done
by using the flag ZONEGATE in FEOPT. In any case FastEcho acts as an
inbound-zone-gate, which means SEEN-BYs will be stripped when
processing EchoMail coming from another zone.
