Add way to get unsubscribe URL.
Add way to get unsubscribe URL.

MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg,MorusAB/commonlib-fmg