Handling mail is a process of receiving, recording and dispatching the incoming and outgoing letters and documents in a systematic manner.
The process of handling incoming mail are receiving mail, recording mail, stamping mail, disturbing mail, and clearing mail.
The process of handling outgoing mails are drafting mail, collecting mail, recording mail, stamping mail and dispatching mail.
Notice is an act of giving information on a given topic to the concerned people inside or outside the organization.
A circular is written information on a given subject issued and circulated by an office or organization to a large number of individuals or offices in the same style and language.