;ò ¢)?Bc@sidZdklZlZdklZdZyeefWne j odZdZnXd„Z dS(srIf the user wishes it, do not send duplicates of the same message. This module keeps an in-memory dictionary of Message-ID: and recipient pairs. If a message with an identical Message-ID: is about to be sent to someone who has already received a copy, we either drop the message, add a duplicate warning header, or pass it through, depending on the user's preferences. (s getaddressess formataddr(smm_cfgs, iicCs<|d}| odSnh}|iƒ|iƒ|iƒ|iƒg} x| D]}t ||