Hi, I am using msilo module to store offline message. I am sending back "202 pending" when the message is stored (m_store) However, when I message delivered (m_dump), how do I inform the sender that the message is successfully delivered? Also, how do I handle if the sender if offline when I try to inform about the delivery of the message. I think I need offline notify store to handle this condition. Instead of removing the message from the silo table upon receipt of 200 OK from the receiver, I am thinking keep the message there until the NOTIFY is successfully delivered to the sender. In effect, the silo table in the database function as offline message and notify store. I reviewed module_k/msilo source code, and the functionality that I need seems missing. I am thinking of two approaches. 1) Extend the msilo module to implement the feature, if more people need it, then I can submit the changes. 2) Write sqlops + lua script to address the missing function. In either case, I am thinking of storing the callid of the original message (possibly in silo table?) in the database and sending the NOTIFY with the callid to the sender. I would like to extend the silo table with two columns: 1. the callid of the message 2. flags to indicate status of the delivery of the message. Appreciate your comments, suggestions and alternatives. Thanks Krish Kura