How do I block unwanted ads?

As a newbie to the forum I simply wish to ask how to block unwanted ads.  These ads appear by the dozens each day, and all seem to have phony email addresses, such as: KDUIjfCCCq@scarfer.onmicrosoft.com, or Cohned.c309074w@clarencecbrooks.onmicrosoft.com, or jomanati21@0000000000prestigepliz.ipfire-zuhause.de.  

We realize that some valid addresses could, at times, be a bit odd.  But does COX not have any way to protect us from this kind of garbage?  It is at least as bad as junk USPS mail and takes a great deal of time and effort to expunge and lable as junk.

Recommendations for effective strategies would be appreciated.

ProfD