How to mute a group I'm not a member from?

[Madeliefste Oh]

I receive messages from a group I never joined. Every time a customer buys something and rezzes it, the person gets a group invite. The person can join or decline, and I receive the results from this. 

When I'm in world I get this message in chat, when I'm offline the messages are sent to my email, like for example:

 

The object '*Shop name* Objectname' has sent you a message from Second Life:
 
█▓▒░░░░░░░░░░░░░░░░░░░░░
 Declined group invitation --> Resident name
█▓▒░░░░░░░░░░░░░░░░░░░░░
 
 
 = *Shop name * Objectname is owned by Resident name

[Rolig Loon]

It's not the group you need to mute, it's the object or its owner.  Next time you see the message in chat, right click on the name of the object sending it and select Show Object Information >>> Block.

[Amethyst Jetaime]

Someone probably typed in the merchants UUID incorrectly in the notification script and accidently used your's instead.  If you know the item name or store, look up who is selling the item and tell them about it so they can correct the script.

[Madeliefste Oh]

That is what I thought as well, but this is not the issue.

When this problem started I did contact the owner. She told me she used the same script that she had used for years already, and she did not change a thing about it.

She copied the script in a notecard to show me and the group UUID is very different from my UUID.

[Madeliefste Oh]

That won't work, the objects that sends these messages belong to the customers who have bought these objects. It is not just one object, but ten or more. I already went to the inworld store of this merchant and blocked every single objects she sells, but that did not help. I keep receiving these messages.

 

The residents name is different every time, because it is the name of the customer shows up in the chat window, who is (after the buy) the object owner.

[Rolig Loon]

Rats. That is truly annoying. It's not a group. Those sound like individual advertising units, like automated billboards.