Google security concern

I recently discovered a "sent" email in my inbox that I don't recognize. The message reads

"DO_NOT_DELETE-4d9ilurs1efzcfqtwiyi3bbyz6vfderyaeupsenmju0kv598ogwhq38re2dz39z8dor0g2d89v7tb13spxse4rlq5uaul-DO_NOT_DELETE"

and was sent to

"4_nt71
ofe7ooqq9letvh1cs55a20933uhl3dmf
v8hskxeygu995ohb0n@unsubscribe-06.emailinboundprocessing.com"

Does anyone have any idea what's going on? I already changed my password, and I don't see any new device sign-ins. I use an android phone so this is concerning to me, as I *did* impulsively click on a suspicious link awhile back.

However, said link led to a timed out website, and a subsequent malware …

google google security malware security