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LETTER File - What is a .letter file and how do I open it?

Learn about .LETTER files and view a list of programs that open them.

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What is a LETTER file? File named dead.letter that is sometimes created on Unix-based systems when email cannot be sent; may be created because the destination address is wrong or because the recipient refuses to accept the email.

More Information The dead.letter files can be deleted safely. However, if there are further problems sending mail, then the file may be recreated. Therefore, you may have to investigate further to locate why the mail is not being sent. NOTE: The dead.letter file can be created by the Unix sendmail program. Also, it is sometimes created when invoking the sendmail program with the PHP mail() function.

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What is a LETTER file?

File named dead.letter that is sometimes created on Unix-based systems when email cannot be sent; may be created because the destination address is wrong or because the recipient refuses to accept the email.

More Information

The dead.letter files can be deleted safely. However, if there are further problems sending mail, then the file may be recreated. Therefore, you may have to investigate further to locate why the mail is not being sent.

NOTE: The dead.letter file can be created by the Unix sendmail program. Also, it is sometimes created when invoking the sendmail program with the PHP mail() function.

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Programs that open or reference LETTER files

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Category: Misc Files

Updated: February 13, 2012

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What is a LETTER file?↓
File named dead.letter that is sometimes created on Unix-based systems when email cannot be sent; may be created because the destination address is wrong or because the recipient refuses to accept the email.

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