Date sensitive documents

[sprayermick]

I have some documents that need to be posted that are date sensitive, in other words they need to remain unopened for about 10 years, with postmarks these days being very feint & sometimes missing altogether how can you prove when a document was posted and then how can you prove that it has not been steamed open and the contents tampered with?

[Poor-Alfie]

i have no idea, but i'm still drunk.

[jackthehat]

If you go to your local Post office, most now generate 'postage labels' which they will stick on to the envelope/package for you in place of a stamp. This ought to give a definite 'date of posting' mark. Perhaps there is also something which they can stick over the sealed flap ?

[Barmaid]

Get a certificate of posting or send it Special Delivery - that way the date will be on the Certificate or on the SD label.

Anywhere on the envelope where there is a seal, place "do not tamper" stickers (available from most stationers) and sign across any join.

OK, it won't stop the most determined, but it will make them think for a bit.

[McMouse]

Lodge documents with a solicitor who will seal and date stamp them.

[boxtops]

McMouse's idea sounds best, but otherwise, the PO will give you a dated and timed Proof of Posting certificate. Otherwise and if the documents are worth more than £40, you could use Special Delivery, so you could get a signature when they are delivered. You could always get some sealing wax and seal the flaps, then it will be very obviously if the flaps have been broken open. You can get sealing wax on eBay.

[sprayermick]

Thank you everyone, the answers have now given me some ideas on how to do it.