Trouble accessing mailing list site

[Dave Dodd]

I get the following error :

	Secure Connection Failed

	An error occurred during a connection to lists.amavis.org. The OCSP server
	suggests trying again later. Error code: SEC_ERROR_OCSP_TRY_SERVER_LATER

when trying to access :

	https://lists.amavis.org/cgi-bin/mailman/listinfo/amavis-users

or

	https://lists.amavis.org/pipermail/amavis-users/

from Firefox 45.0 on FreeBSD 10.2 .

I can access both pages when I go into about:config and turn off

	security.ssl.enable_ocsp_stapling

Can or should this be fixed properly ?

-- Dave