Palestine is a notoriously difficult destination to deliver SMS due to heavy filtering by carriers. In many cases, even legitimate application to person (A2P) traffic is blocked and so cheap signalling/roaming links do not deliver well particularly for high value content such as password delivery or alerts. In order to get around this filtering, Nexmo uses a direct route to all networks in Palestine.
This direct connection features handset delivery receipts, delivery to ported numbers however the Sender ID may be modified to ensure delivery. No religious, political or adult content is allowed.