Do not bend envelopes royal mail

A classic phrase!

"Do not bend" is a common instruction often printed on envelopes by senders, particularly in the UK, to advise Royal Mail (and other postal services) not to bend or crease the envelope during processing. This is usually done to prevent damage to the contents, such as documents or cards, which may be fragile or sensitive.

Royal Mail, being a responsible postal service, takes these instructions seriously and makes every effort to handle envelopes with care. In fact, their guidelines state that they will not bend or crease envelopes unless it is absolutely necessary to do so, such as in cases where the envelope is too large or irregularly shaped to fit through their processing machinery.

So, if you see "Do not bend" on an envelope, rest assured that Royal Mail will do their best to respect your wishes and handle the envelope with care.