* gnu/services/messaging.scm (prosody-configuration): Add insecure-sasl-mechanisms configuration option. * doc/guix.texi (Messaging Services): Document it. Change-Id: I8d9e42476ea8ad2f89b143ed4a66b4798e418586 Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>