On Wed, 31 Jul 2013, Benny Pedersen wrote to Scott Little:

 SL> Solution is to hope the developers want to implement optional seenby 
 SL> stripping ;)

 BP>    ----- netmail begins -----

 BP> === NetMailAreas ===
 BP> NetmailArea 
 BP> Options: noTinySB noKillSB noKeepUnread noKillRead noHide .......  
 BP>   ----- netmail ends -----

netmail does not have SEEN-BY lines... it has VIA lines, instead...

SEEN-BYs are only in ECHOmail...

it used to be when crossing zones, seen-bys were stripped because of
duplicate nets and nodes... if the seen-bys were left in place, those
network nodes would not get the posts...

  eg: 1:3634/12 sends a message
      3:3634/12 would not see it because seen-by is 2D "3634/12"

this is not a problem any more now that fidonet is smaller and there are no
more duplicate nets and nodes across zones... seen-bys do not need to be
stripped any more...

FWIW: in FastEcho it is called "Tiny SEEN-BY" and we've had the
option for years ;)

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