My own email address is now considered spam

After I manually moved to the spam box some spam emails using my name to trick me, now Comcast considers email headers with my name as spam. So, if I send an email with cc: to my Comcast address, it is considered spam and will reach the inbox for just a few seconds, then disappear into the spam box. Every time, I have to fetch these emails in my spam box and click the "not spam" button. Is there a way to correct this issue?

Thanks,

[Edit: PII]