L'acronyme PCYMTWLL est utilisé pour : Please Configure Your Mailer To Wrap Long Lines

Please Configure Your Mailer To Wrap Long Lines.

Some mailers don't, and then most of the message ends up looking like one lo-ong line in the web archives. Very annoying to have to scroll left and right as well as up and down. Please be considerate!

Also, some MTAs simply truncate long lines at 998 characters (the maximum allowed by RFC2821 and RFC2822) instead of wrapping them, so information in your message may actually be lost if your mailer doesn't wrap lines or encode line continuations properly.

Note that this does not apply to cases where the lines do need to be long, e.g., program output included verbatim, or patches. In those cases it's ok to have long lines.

Coined by Igor Pechtchanski.

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