Shouldn't thunderbird be retired from epel7?
Available Packages
thunderbird.x86_64 31.4.0-1.el7 epel
thunderbird.x86_64 31.4.0-1.el7 rhel-7-server-optional-rpms
thunderbird.x86_64 31.5.0-2.el7_1 rhel-7-server-optional-rpms
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Orion Poplawski
Technical Manager 303-415-9701 x222
NWRA, Boulder/CoRA Office FAX: 303-415-9702
3380 Mitchell Lane orion(a)nwra.com
Boulder, CO 80301
http://www.nwra.com