To finish an emailed letter is truly no different than ending a formal letter sent by old fashion postal service. Depending on the context of the letter and who the recipient is, common proper closings (salutations) are 'sincerely,' 'with regards,' or 'signed,' all followed by your name (and title, if needed). A brief summary of the contents before the salutations is also a good move for longer letter.
Using proper etiquette on the Internet, including in e-mails, is called "Netiquette".
so people can look up barney
It is acceptable, but ask for an RSVP so you know it was received.
No, it is not proper etiquette to send weddinginvitations by email if it is a large wedding. If you are having a small wedding and it's casual then you could send a card invitation by email.
Etiquette for email is most often referred to as netiquette.
Business email etiquette is a professional manner when contacting a colleague through email. To achieve good email etiquette follow a few steps. These steps include avoiding slang or rambling, address the recipient by name, label the email with a professional subject line, and write the purpose of the email out clearly.
* It's appropriate, but a nice Thank You card signed by you (perhaps a note inside) is the proper etiquette.
Business email etiquette is a professional manner when contacting a colleague through email. To achieve good email etiquette follow a few steps. These steps include avoiding slang or rambling, address the recipient by name, label the email with a professional subject line, and write the purpose of the email out clearly.
Netiquette
People send e-mail for all sorts of reasons. Etiquette is dictated by the audience and reason for the correspondence. Business e-mail messages should have a more professional tone than a personal, friendly e-mail to family members.
Netiquette
There are many online resources for one to learn the etiquette of forwarding email. For instance, there are guides available on websites such as About, WikiHow, and Netmanners.