just to put your mind at ease. Also, report to them what you received. I do not subscribe to Sirius so I know these emails I get are bogus. But bc you do subscribe, you might contact Sirius through your account portal online.

I got 2 Mailer Daemons on an AOL account from some wacky bogus email/website saying my email unsubscribing them was undeliverable. ??? I never did. Looked up similar email/site on the google and one entry had some words in Cyrillic mixed in. Russian or foreign Slavic. Yah, bogus!

Easiest giveaway is when the sending address looks nothing like the real sender.

They often try to trick people by putting the spoofed company's name inside some bogus address, like siriusxm.scammer.com ( exaggerated a bit to make the point )

For a while the sender had a pr in the domain which was pointed to me was Puerto Rico.

Then I would get from Social Security or the IRS when the address was gmail.