Issues with Clay Sequencer Email Sending Unexpected Messages

Clay S. can you please help? I connected my email to the Clay Sequencer to send out emails natively from my table. Once I connected the account, I noticed two random emails going out from my Outlook to email ID's that are not in my email list or any of my Clay tables. It feels like connecting my account to the sequencer caused this. Can you please let me know if something like this happened to anyone else, and also verify/ensure that the Microsoft OAuth process for the sequencer is secure? Thanks!