Notification on gateway DOWN but not in UP

[naltalef]

Hi.
I have  a multi-wan setup and I would like to receive mails when a Gateway is Down and also when is Up again.
I configured SMTP Notifications and Gateway Down mails like the following are received OK

MONITOR: WAN2_GW is down, removing from routing group WANGWGROUP

But no mail is received when the gateway is again OK

Is there any way to receive mail in both events ?

Aditionally I configured monit service. Is there any way to configure this service to generate this alarms ?

Many thanks in advance

Regards
Norberto