Mails not being sent to people in CC
I think that you will need to put the CCADDR with the TOADDR when sending the mail: s.sendmail(FROMADDR, TOADDR+CCADDR, msg.as_string()) You’re correctly adding the addresses to your message, but you will need the cc addresses on the envelope too. From the docs: Note The from_addr and to_addrs parameters are used to construct the message envelope … Read more