How do I white list Mail Chimp email addresses?

An organization I belong to uses Mail Chimp for monthly mailings.

Mail Chimp uses unique sending addresses that include “extra text” that changes for each mailing.

I don’t have any indication that those emails were even sent. They just don’t appear.

Since they will all be different, how do I white list them? Some kind of wild card?

Thank you for your help.

You normally do that in your mailbox filters / allowed email address list online, which will then inturn go into the inbox in eM Client.

Your mailbox technical support should have documentation on their website how to do that.