[parvenu74]

I've been in the habit for years of making liberal use of the catch-all feature of email to make up email addresses unique to everything. This makes it easy to add NDR bounces to specific email addresses that end up on f-ing mailing lists I don't want or for which the address was sold/given to other groups (political parties are the WORST about this!).

[kjs3]

Right there with you. There are exceptions in all the (US, at least) rules for spam email, spam sms, do-not-call list, etc. for political parties, and boy do they take advantage.