LetterAgent
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Yes, but do both: send a thank-you email within 24 hours, then mail a short letter. The email covers you on timing; the letter sets you apart because almost no one sends one. Mention one specific detail from your conversation, keep it under a page, and post it within a day or two of the interview.
| Thank-you email | Mailed thank-you letter | |
|---|---|---|
| Send when | Within 24 hours of the interview | Within a day or two; it arrives a few business days later |
| Main job | Confirm your interest fast and answer any loose ends | Stand out; very few candidates bother with paper |
| Length | A few short paragraphs | One page, maximum |
| Risk | Practically none | Can arrive after a fast hiring decision |
Three short paragraphs are enough. Thank them for their time, reference one specific thing you discussed, and close with genuine enthusiasm for the role. The specific detail is the whole point: mention the migration project the manager described, the team's odd deployment schedule, anything that proves you were listening. A generic "thanks for the great conversation" reads like a form letter and wastes the stamp.
Do not repeat your resume. The letter is a courtesy plus one memorable detail, not a second application. And skip the groveling: "I would be honored beyond words" makes hiring managers uncomfortable. Plain, warm, confident. Sign it by hand above your typed name if you want the personal touch.
If the company is deciding within 48 hours, your letter lands after the choice is made. That is why the email goes first: it does the real work. Before you leave the interview, ask about the timeline ("When are you hoping to make a decision?"). If they say next week, the letter has time. If they say tomorrow, the letter becomes a nice gesture rather than a factor, and that is still worth sending.
One caution: never send a gift with the letter, and do not call to check that it arrived. One follow-up is polite; two is pressure. The same etiquette holds in Canada, where post-interview thank-you notes follow the same email-first, letter-as-bonus pattern.
Address the hiring manager at the company's office address. Confirm the mailing address with HR or the company's contact page rather than guessing; a letter sent to a home address you found online feels intrusive, not thoughtful. If you interviewed with a panel, one letter to the hiring manager that names the other interviewers works well, or write short individual notes if you have each person's address.
If you have no printer, or you want it posted the same day without a trip to a mailbox, you can have the letter printed and mailed for you: describe it to your AI assistant, approve the exact quoted price, and it goes out as a real physical letter. Either way, the differentiator is the same: almost nobody sends paper anymore, so yours gets opened.
Ready to mail it? Send your letter with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and it is printed and mailed.
LetterAgent is a working name. Prices include print, postage, and our service fee. US prices in USD, Canadian prices in CAD (Canadian prices exclude applicable sales tax, added at checkout). Currently in private testing.
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