Theo,
I have tried add the following hashtags to message subjects but the
new topic messages keep getting emailed out to all members
...
#noemail
#NoEmail
#No Email
It isn't the name that makes a hashtag suppress email distribution. It is a property of the hashtag.
Go to the Hashtag page in your group, pick the hashtag you want to use for this purpose and click its Edit button. Or use the Create Hashtag button at the bottom. By the way, Edit and Create are available only to group mods/owners.
On the Edit Hashtag page you'll find a wealth of properties to control topics with that hashtag in the Subject line. One of these is the No Email checkbox. Check that, then scroll to the bottom and click the Update Hashtag button.
Shal
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