Respected Sir/ Madam,
I am __________ (name) and I write this email to all of the residents of the ____________ (name of the dorm) to state that we have decided to organize a _____________ (mention – tree plantation/ help the poor/ education for poor) drive and that is going to commence on __/__/____ (date). You all are hereby informed that the drive will begin at __:__ (time) and end at __:__ (time).
You are all requested to be a part of the said drive as this is going to help the society in achieving a better life ________________ (mention your point). For further queries, please do contact at ___________ (mention contact number).
Regards,
[Digital Signature – if applicable]
____________ (Signature)
____________ (Name),
____________ (Contact details)