You may compare the existing snapshots on your destination server and on the source. If the number of snapshots are equal and the dates are the same I would say that the last backup should have been successful.
Edit: The script I use to check daily backups myself. Written on bourne shell and working fine on FreeBSD, but as per POSIX standard should work on any other OS.
May be you will need to play around with the filter for the remote snapshots, this one works for me but this is for specific hostnames and zfs datasets.
local_snapshots="$(zfs list -t snapshot | grep -v auto | grep -i `date +"%Y-%m-%d"` | wc -l|tr -d ' ')"
remote_snapshots="$(ssh root@$dist_server 'zfs list -t snapshot |grep -i remote-dataset-name |grep -i `date +"%Y-%m-%d"`' | wc -l |tr -d ' ')"
if [ "$local_snapshots" == 0 ]; then
echo "Backup failed! $local_snapshots were created today."
if [ "$local_snapshots" == "$remote_snapshots" ]; then
echo "Backup succeess, today $local_snapshots was transferred"
echo "Backup failed! $local_snapshots snapshots were created but $remote_snapshtos were transferred"