The mailing list for listmasters using Sympa

[Fiona Dix <address@concealed>]

Hi

How do list members set their options to nomail, digest, etc. when 
the list is run from an external sql database? I have a list 
(branchreps) and people in a particular group, whose email  addresses 
are stored in a mysql db, automatically belong to it. As they can't 
unsubscribe I told them if they don't wish to receive mail send a 
'set <listname> nomail' command. However this does not seem to be 
working.

The sympa log says the command is accepted, but it has no effect - 
the mail is still being distributed to the user.

Apr 16 13:59:21 www sympa[26211]: SET branchreps NOMAIL from 
<users-email-address-here> accepted (0 seconds)

where would the reception mode be stored for lists based on includes?

thanks
Fiona