[Xymon] Recovery mail not coming from few days

Hi,

i am not getting any recovery mail from last 3-4 days for the server memory. It consumes more memory for 1 hour daily so mail comes for memory red and then memory green (recovered). but now i dont get any memory recovered mail from last 3-4 days. i have not changed any confg. xymon-4.2.2. rhel 5.2 thanks akshar