Hi Trevor, Thanks for copying the headers - it looks like a repeat of what we've seen = before. Something about the combination of using a desktop mail client, a Y= ahoo email address, and the Piclist. Best regards, Bob From: piclist-bounces@mit.edu on behalf of Trevor= =20 Header info from the original (for Bob): User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101^M Thunderbird/45.2.0^M --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .