Private Messages/Conversations pop up

[Screech]

Is there any way for me to dismiss/disable this so that it's not constantly showing up? Appreciated it letting me know the first couple of times I saw it but the past few hundred times it's popped up have been slightly overkill.

Full message in it below to be clear what I'm referring to:

Private Messages / Conversations

As part of server optimisation, we'll shortly be deleting all private messages/conversations. If you'd like to keep any information, please backup away from the forum. Thanks.

 

[GrandOldTeam]

Sorted.

 

[GrandOldTeam]

Conversations have now been deleted.

In future, any conversation without a reply in 180 days will automatically be deleted.