I am getting spam emails daily that are addressed to me and they are from me but I didn't send them.  Some of them have a domain name at the bottom of the email but not the same as previous emails.  I have tried both blocking by the sender and the domain, but each time it places my address in the blocked list. Sometime I send pictures to myself from another device and if my address is in either list (sender or domain) I can't receive the attachments. Is there anyway to stop these emails? Are they using some kind of an alias to bypass the spam filter and how do I get around them?  Thanks