The mailing list for listmasters using Sympa

[Amos <address@concealed>]

I'm trying to set up the HTTP link so that folks can simply click it
and unsubscribe from a 6.1b7 list as described here
http://www.sympa.org/manual_6.1/message-handling .  I have the
following in the footer for a list.

--
To unsubscribe from this list, clink here:
[% wwsympa_url %]/auto_signoff/[% listname %]/[% user.escaped_email %]
--

However, when a recipient of a post receives the message, clicks on
the link, they get:

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Service Unavailable

The service is temporarily unavailable. Please try again later.
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Here are some logs from sympa:

Sep 23 07:01:36 localhost wwsympa[16039]: info [robot tlists.x.org]
[session 18330464510546] [client x.x.x.x] [user address@concealed] [list
stest1] main::do_add() do_add(address@concealed)
Sep 23 07:01:36 localhost wwsympa[16039]: err List::get_subscriber()
Unable to retrieve information from database for user
address@concealed
Sep 23 07:01:36 localhost last message repeated 1 time
Sep 23 07:01:36 localhost wwsympa[16039]: info
List::insert_delete_exclusion()
List::insert_delete_exclusion("address@concealed", "stest1",
"tlists.x.org", "delete")
Sep 23 07:01:36 localhost wwsympa[16039]: err
List::delete_subscription_request() No pending subscription was found
for users address@concealed

Sep 23 07:04:02 localhost wwsympa[16039]: info
Auth::create_one_time_ticket()
Auth::create_one_time_ticket(address@concealed,tlists.x.org,signoff/stest1,x.x.x.x)
value = 64384874569879

Sep 23 07:04:04 localhost wwsympa[16471]: info
Auth::create_one_time_ticket()
Auth::create_one_time_ticket(address@concealed,tlists.x.org,signoff/stest1,x.x.x.x)
value = 21692876861934

Sep 23 07:04:06 localhost wwsympa[16473]: info
Auth::create_one_time_ticket()
Auth::create_one_time_ticket(address@concealed,tlists.x.org,signoff/stest1,x.x.x.x)
value = 1394888311772

Sep 23 07:04:20 localhost wwsympa[16475]: info
Auth::create_one_time_ticket()
Auth::create_one_time_ticket(address@concealed,tlists.x.org,signoff/stest1,x.x.x.x)
value = 15373729703072

Sep 23 07:07:01 localhost wwsympa[16485]: info
Auth::create_one_time_ticket()
Auth::create_one_time_ticket(address@concealed,tlists.x.org,signoff/stest1,x.x.x.x)
value = 23169435288393

Sep 23 07:07:03 localhost wwsympa[16522]: info
Auth::create_one_time_ticket()
Auth::create_one_time_ticket(address@concealed,tlists.x.org,signoff/stest1,x.x.x.x)
value = 86805994329773

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