Append warning if Mailrest plugin is enabled without Token or Captcha (#1602)

4 jobs for v2.0 in 10 minutes and 23 seconds (queued for 7 minutes and 23 seconds)
Status Job ID Name Coverage
  Build
passed #9822
build_bionic

00:03:16

passed #9821
build_buster

00:03:25

passed #9820
build_stretch

00:03:08

 
  Sign
passed #9823
sign

00:00:33