Control: tags -1 patch Not a perfect solution but sufficient for stretch is the patch below to use OpenSSL 1.0.2
The "| libssl-dev (<< 1.1.0~)" is added for backports. --- debian/control.old 2016-11-28 17:56:04.000000000 +0000 +++ debian/control 2016-11-28 17:56:11.000000000 +0000 @@ -10,7 +10,7 @@ , libdb-dev , libevent-dev , libpam0g-dev - , libssl-dev + , libssl1.0-dev | libssl-dev (<< 1.1.0~) , po-debconf Standards-Version: 3.9.8 Homepage: http://www.opensmtpd.org/ cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed