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For a domestic letter, give it a few extra business days past the normal delivery window before you resend: mail gets mis-sorted and shows up late more often than it vanishes. Cross-border letters deserve a longer wait. If the letter was time-sensitive, don't wait it out: resend it right away by a tracked service and mark it as a duplicate.
| Situation | Wait guidance |
|---|---|
| Domestic letter, no deadline | A few extra business days past the normal window; late beats lost most of the time |
| Cross-border (US to Canada or reverse) | Longer: customs and handoffs between postal systems add variance |
| Letter with a deadline | Don't wait: resend immediately by certified or registered mail and note it's a duplicate |
| Sent by certified or registered already | Check the tracking first; if it stalls with no movement, treat it as lost sooner |
Most "lost" letters were never lost: they were mis-sorted into the wrong bin, loaded on the wrong truck, or delivered to a similar address a street over. The postal system is good at eventually correcting these errors, which is why patience pays. Letters genuinely vanish far less often than they arrive late, and declaring one lost too early is how you end up with two copies in circulation. The wait isn't optimism: it's statistics.
Mark the resend clearly as a duplicate. Write "DUPLICATE: original mailed [date]" at the top so the recipient knows which copy counts. This matters most for letters that trigger action: an invoice paid twice, a cancellation processed twice, a contract signed twice. If the letter contained a cheque or payment instruction, contact the recipient before resending and consider stopping payment on the original. A duplicate notice is cheap insurance against the original surfacing after the replacement.
Yes. The second send is the one you upgrade: certified mail in the US or registered mail in Canada gives you tracking, a delivery record, and proof you acted promptly. If the first letter is ever disputed, the paper trail on the resend shows diligence. Keep both mailings' documentation together: the original's proof of mailing, the resend's tracking, and any correspondence with the recipient. If the letter ever matters in a dispute, that folder is your story.
Then your duplicate marking did its job: the recipient files the second and ignores the first. That is the entire point of labeling it. An unlabeled double arrival creates confusion; a labeled one is a non-event.
Ready to mail it? Send your letter with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and it's printed and mailed.
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