All mail for Operation Dear Abby is limited to 11 oz. or less. These addresses target major military aerial mail terminals and fleet mail centers overseas. I know you send them with the best of intentions and out of concern. So far each has been a HOAX and many have been on the net for years. They take a long time to download, and put addresses of all your friends and family out on the web for spammers.
Chain letters are probably why.
If you are passing on real worth while information, please cut off all the forwarded addresses, and just send the actual letter. If your mail program does not let you do this, try Eudora Mail . I get quite a few requests for information on how to get a copy of lost birth certificates from overseas. The following information will help you with that. If your parents did not register your birth it is suggested you apply to a US Passport Agency for a US Passport or INS for a Certificate of Citizenship to document citizenship.