I have been away for a week, and this morning saw that enigmail had been updated in my absence, so I updated all the jessie updates offered me by the official repositories.
This updated thunderbird and enigmail, as expected. BUT enigmail won't run because it seems that the current update requires a version of gnupg that is more recent than the official version that is part of the repositories :-( So I downgraded using the suggested sequence: >>> apt remove thunderbird icedove >>> apt install thunderbird=1:45.8.0-3~deb8u1 >>> apt install thunderbird-l10n-nl=1:45.8.0-3~deb8u1 >>> apt install lightning=1:45.8.0-3~deb8u1 >>> apt install lightning-l10n-nl=1:45.8.0-3~deb8u1 >>> apt install icedove=1:45.8.0-3~deb8u1 >>> apt install enigmail=2:1.8.2-4~deb8u1 >>> apt -t jessie-backports install xul-ext-sogo-connector >>> Just wanted to mention this so that others won't be surprised if they hit the same problem. Doc -- Web: http://enginehousebooks.com/drevans
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