wildcard characters
I get a significant amount of spam every day. The great majority of them come from "**@***.com." I try to use "*@.com" to block ALL mail from any admin, but Yahoo won't accept it. Reading various other comments with similar issues shows "Flag idea as inappropriate." Blocking through the three dots only blocks one address. My blocked list is over 800, and roughly 300 are from an admin-type address. Opening up the wildcard option would allow us to block a large amount of spam.
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Jerry Dennis
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