Between friends, it is often informal. For business, it should always be formal.
An informative email will be in the form of an email and have information about a subject
Email is so quick easy fast and it's cheep
It means write to me, an informal invitation to write a letter, email, postcard etc.
the difference between these is that formal email is writing an email in a polite way and informal email is using Geordie language, e.g you alreet pet hows u doing? - this is an informal email as they are using Geordie language and some people will not like the way that people speak.
The advantages of a domain based email such as tiscali is 1&1 hosting, and the ability to have a quick, informal source for personal email and personal information sharing.
informal, personal of friendly letter are often letter to family member or friends.
LOL: Laugh Out Loud
There are many types of informal communications: email, fax, note, personal letter, chat with a friend, water cooler gossip and phone calls, to name just a few.
"Dear Friends" might work.
Etiquette for email is most often referred to as netiquette.
Cual es su correo electronico?- formal way me pasas tu email? -informal way
An informal email could be an email sent to someone the sender knows well, a relative or friend - it is more of a note that a letter. A formal email is one that is sent to a business, were the receiver is not known socially or could be anyone in that business.