The British Forces Post Office (BFPO) sets special postal rates and there is no charge at all for Forces Airletters (‘Blueys’) sent to personnel on operational duty. Shown below are the different postage rates for all the postal services offered for HM Forces Mail.

Remember, BFPO Airmail prices reflect the Royal Mail’s domestic tariffs, so the format (letter, large letter, packet) of the item sent affects the price.

HM Forces Airletters (or “blueys”) are an all-in-one letter and envelope. They are available from all Post Office™ branches and may be sent free of charge to forces personnel on operational duty.

*To find out  the BFPO numbers which are eligible to the free service please click on the link below:

Find a full list of BFPO numbers

To hear the full list of BFPO numbers to which the free mails service currently applies, please contact the British Forces Post Office Customer Care Unit (0845 769 7978), or call our customer services department on 08457 740 740.

For further information about the free service, please visit our Frequently Asked Questions page.

For information on the mail prohibitions and restriction please visit the Mail Prohibitions page.

*Airletters sent to other BFPO addresses not listed via the link above must be paid for at normal BFPO postage rates.