On 13/06/2018 07:14, Daniel wrote: > The way I figure, there must be information in the message headers which > is common to all the cross-posts but different to any other posts in any > of the mentioned groups.
Yes: the Message-ID. That of your initial message is <k-mdnzrvbim2nb3gnz2dnuu7-dxnn...@mozilla.org> Regards. _______________________________________________ support-seamonkey mailing list support-seamonkey@lists.mozilla.org https://lists.mozilla.org/listinfo/support-seamonkey