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How to Mail a Letter

Learn how to mail a letter with envelope addressing, return address, postage, mailbox options, common mistakes, troubleshooting, and FAQs.

DocumentsEdited by Pramod Tiwari
2 min read

Quick Answer

To mail a letter, place it in an envelope, write the recipient address in the center, add your return address in the upper left, attach enough postage in the upper right, seal the envelope, and drop it in a mailbox or take it to a post office.

What You Need

  • Letter or document
  • Envelope
  • Recipient address
  • Return address
  • Correct postage
  • Pen with dark ink

Safety Precautions

  • Do not mail cash unless you understand the risk.
  • Use tracking for important documents.
  • Check postage for heavy or unusual envelopes.
  • Avoid sending sensitive documents without the right service.
  • Make addresses clear and complete.

Step-by-Step Instructions

  1. Step 1

    Choose the envelope

    Use an envelope that fits the letter without folding it too tightly.

  2. Step 2

    Insert and seal

    Place the letter inside and seal the flap securely.

  3. Step 3

    Write the recipient address

    Put the recipient name, street address, city, state, and ZIP code in the center.

  4. Step 4

    Add the return address

    Write your name and address in the upper-left corner.

  5. Step 5

    Apply postage

    Place the stamp or postage label in the upper-right corner.

  6. Step 6

    Check for extras

    Use extra postage, tracking, or certified mail when the letter is heavy or important.

  7. Step 7

    Send it

    Drop the letter in an approved mailbox or hand it to a postal clerk.

Practical Example

Example: You mail a birthday card by writing the full address clearly, adding one standard stamp, sealing the envelope, and dropping it in a blue collection box before pickup time.

Common Mistakes

  • Missing apartment number
  • Putting postage in the wrong corner
  • Using too little postage
  • Writing hard-to-read addresses
  • Forgetting the return address
  • Mailing important documents without tracking

Troubleshooting

Letter comes back

Check the address, postage, ZIP code, and whether forwarding has expired.

Envelope is thick or heavy

Weigh it or take it to the post office for exact postage.

You need proof of delivery

Use a tracked or certified mailing service.

Address is international

Confirm country formatting and international postage before sending.

FAQs

Where does the stamp go?

The stamp or postage label goes in the upper-right corner of the envelope.

Is a return address required?

It is strongly recommended because undeliverable mail can be returned to you.

Can I mail a letter from home?

Often yes, if your postal service accepts outgoing mail from your mailbox and the letter has proper postage.

How do I mail something important?

Use tracking, certified mail, or another service that gives proof of mailing or delivery.

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