1Originally and chiefly North American. The action or an act of posting a letter, etc., for a second or further time.
2Computing. The action or process of remailing an email in order to conceal the identity of the original sender. Usually attributive Compare "remailer".
Origin
Mid 19th century. From re- + mailing.
Definition of remailing in US English:
remailing
nounˌriːˈmeɪlɪŋ
1Originally and chiefly North American. The action or an act of posting a letter, etc., for a second or further time.
2Computing. The action or process of remailing an email in order to conceal the identity of the original sender. Usually attributive Compare "remailer".