Package: icedove Version: 1:45.2.0-4 Followup-For: Bug #835866 I also tested version 4.5.2.0-1~deb8u1 from debian stable. This version is working under debian testing. So i think there is a change which was made in the package and not on the google side.
-- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.6.0-1-amd64 (SMP w/12 CPU cores) Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages icedove depends on: ii debianutils 4.8 ii fontconfig 2.11.0-6.5 ii libasound2 1.1.2-1 ii libatk1.0-0 2.20.0-1 ii libc6 2.23-5 ii libcairo2 1.14.6-1+b1 ii libdbus-1-3 1.10.10-1 ii libdbus-glib-1-2 0.106-1 ii libevent-2.0-5 2.0.21-stable-2+b1 ii libffi6 3.2.1-4 ii libfontconfig1 2.11.0-6.5 ii libfreetype6 2.6.3-3+b1 ii libgcc1 1:6.1.1-11 ii libgdk-pixbuf2.0-0 2.34.0-1 ii libglib2.0-0 2.48.1-2 ii libgtk2.0-0 2.24.30-4 ii libhunspell-1.4-0 1.4.1-2 ii libicu57 57.1-3 ii libnspr4 2:4.12-2 ii libnss3 2:3.25-1 ii libpango-1.0-0 1.40.1-1 ii libpangocairo-1.0-0 1.40.1-1 ii libpangoft2-1.0-0 1.40.1-1 ii libpixman-1-0 0.33.6-1 ii libsqlite3-0 3.14.1-1 ii libstartup-notification0 0.12-4 ii libstdc++6 6.1.1-11 ii libvpx3 1.5.0-4 ii libx11-6 2:1.6.3-1 ii libxcomposite1 1:0.4.4-1 ii libxdamage1 1:1.1.4-2+b1 ii libxext6 2:1.3.3-1 ii libxfixes3 1:5.0.2-1 ii libxrender1 1:0.9.9-2 ii libxt6 1:1.1.5-1 ii psmisc 22.21-2.1+b1 ii zlib1g 1:1.2.8.dfsg-2+b1 Versions of packages icedove recommends: ii hunspell-en-us [hunspell-dictionary] 20070829-6 ii iceowl-extension 1:45.2.0-4 ii myspell-de-de [myspell-dictionary] 20160407-1 ii myspell-fr [myspell-dictionary] 1.4-27 Versions of packages icedove suggests: pn apparmor <none> pn fonts-lyx <none> ii libgssapi-krb5-2 1.14.3+dfsg-1 -- no debconf information