I've replaced the simple mail alias that was being used to send travmap@teresco.org emails to me with a full mailman mailing list. The submission address remains the same. I hope this will eliminate some or all of the problems people have been seeing with their update submissions bouncing or failing silently. I'm sure there are some kinks to work out, and at least for now I have the mailing list moderated. I will receive moderation notifications and will authorize posts from legitimate users (and clear their moderation flags so they can send unmoderated updates subsequently). Please post here or send me a PM on the forum here if you notice problems with submissions of list files.