How to open LETTER file format? (Undeliverable Mail File)

Problems with opening LETTER files occur very often among users. purtroppo, not everyone is aware that the basic and usually the most common problem is the lack of an installed software to handle the LETTER file. Its full name is Undeliverable Mail File and the company responsible for its development is N/A. Your LETTER file has probably an encoded information from the Misc Files category. Se si desidera visualizzare il contenuto, aprire, edit or convert the LETTER file to another format, installare una delle applicazioni dalla lista, che viene presentato sotto di questa pagina. Can’t you still open your LETTER file? per favore, visita file extension letter dove potrete trovare maggiori informazioni.

I programmi che utilizzano questa estensione di file

Finestre
– Sendmail

Mac OS
– Sendmail

Linux
– Sendmail