Your invitations are finished, the envelopes are ready, and now it is time to get them into your guests’ hands. Mailing invitations may seem as simple as adding a stamp and dropping them into a mailbox, but the process can become more complicated when your invitation includes multiple insert cards, thick paper, acrylic, ribbon, wax seals, or other embellishments.
Before mailing your entire order, take a few minutes to properly assemble, weigh, and inspect one complete invitation. This can help prevent returned envelopes, insufficient postage, delays, and damaged invitations.
Assemble One Complete Invitation First
Before purchasing postage, assemble one invitation exactly as it will be sent to your guests.
Include everything that will be placed inside the envelope, such as:
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The main invitation
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RSVP card
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Details or information card
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Reception card
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Itinerary
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Accommodations card
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RSVP envelope
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Ribbon, belly band, vellum wrap, or wax seal
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Any other decorative embellishments
Even a small insert card or ribbon bow can change the weight or thickness of the envelope. This is why you should never purchase all your stamps based only on the invitation card itself.
Once one complete suite is assembled, seal the envelope temporarily or hold it closed so it can be weighed and inspected accurately.
Arrange the Invitation Cards Neatly
Place the main invitation at the bottom, with the wording facing upward. Stack any additional cards on top, generally from largest to smallest.
For example:
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Main invitation
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Details or reception card
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RSVP card
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RSVP envelope
When an RSVP envelope is included, place the RSVP card underneath the envelope flap without sealing it.
If your invitation includes a belly band, vellum wrap, ribbon, or pocket, make sure all the pieces are secured and will not shift excessively inside the mailing envelope.
Choose an Envelope That Fits Properly
The invitation should slide into the envelope comfortably without bending the corners or forcing the flap closed.
At the same time, the envelope should not be so large that the invitation moves around freely during delivery.
A standard 5-by-7-inch invitation is commonly placed inside an A7 envelope. However, invitations with thick pockets, layered cardstock, large ribbon bows, or embellishments may require a larger or roomier envelope.
Square envelopes are popular for invitations, but they may require additional postage. Envelopes that are rigid, unusually shaped, very thick, or uneven may also cost more to mail.
Address Every Envelope Clearly
Place the guest’s full name and mailing address in the center of the front of the envelope.
The address should include:
Guest’s Full Name
Street Address
City, State ZIP Code
Double-check each address before mailing. Missing apartment numbers, incorrect ZIP Codes, misspelled street names, and outdated addresses are common reasons invitations are delayed or returned.
Decorative lettering is perfectly fine, but the address should still be easy to read. Avoid extremely small writing, low-contrast colors, or designs that make the mailing address difficult to identify.
When using dark-colored envelopes, consider a light address label, white ink, metallic printing, or another addressing method that provides enough contrast.
Always Include a Return Address
A return address allows the invitation to come back to you when it cannot be delivered.
Many formal invitations place the return address on the back envelope flap. While this is common and visually appealing, placing it in the upper-left corner on the front of the envelope may be easier for postal processing.
The return address should include:
Your Name
Street Address
City, State ZIP Code
Returned invitations are not always preventable, but including your address gives you an opportunity to contact the guest, correct the information, and send the invitation again.
Weigh the Invitation After It Is Fully Assembled
Your invitation’s postage is determined by more than the number of cards inside the envelope.
Postal employees may consider:
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Total weight
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Envelope dimensions
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Thickness
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Shape
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Flexibility
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Whether the contents are evenly distributed
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Whether the envelope can travel through standard sorting equipment
A small postal or kitchen scale can give you an estimate, but it is still best to take one finished invitation to the post office.
Do not assume every invitation only needs one regular stamp. Additional cards, thick cardstock, acrylic, ribbons, wax seals, and square envelopes can all affect the amount of postage required.
Take a Finished Sample to the Post Office
Before sealing and stamping every envelope, bring one completely assembled invitation to your local post office.
Ask a postal employee to confirm:
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The exact weight
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The required postage
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Whether the envelope is considered machinable
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Whether it needs a nonmachinable surcharge
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Whether it should be mailed as a letter, large envelope, or package
This step is especially important for acrylic invitations, boxed invitations, laser-cut pockets, thick layered suites, and envelopes with raised decorations.
Every invitation design is different. Even when a friend or relative recently mailed invitations, their postage requirements may not be the same as yours.
Be Careful With Wax Seals and Embellishments
Wax seals are beautiful, but placing a raised seal on the outside of the mailing envelope may create problems during postal processing. It can crack, become damaged, or catch on sorting equipment.
Whenever possible, use the decorative wax seal inside the mailing envelope as part of the invitation presentation.
If you prefer a wax seal on the outside, take a finished sample to the post office and ask whether additional postage or special handling will be needed.
The same applies to:
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Large ribbon bows
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Rhinestones
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Brooches
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Charms
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Buttons
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Thick knots
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Raised floral decorations
These elements can make the envelope uneven, rigid, or too thick for regular letter processing.
Protect Acrylic and Luxury Invitations
Acrylic invitations require more protection than traditional cardstock invitations. Although thin acrylic may fit inside a standard envelope, it can still be rigid and may not safely pass through postal sorting equipment.
Depending on the thickness and design, you may need:
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A protective outer envelope
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A rigid mailer
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A padded mailer
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Cardboard protection
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An invitation box
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Package postage
Large laser-cut pockets, layered invitations, and boxed suites may also need to be treated as packages rather than regular letters.
Never guess with acrylic or bulky invitations. Have a postal employee inspect the complete invitation before purchasing postage for the entire order.
Seal the Envelopes Securely
Before sealing an envelope, confirm that the correct invitation is going to the correct guest.
Check that:
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The guest’s name is spelled correctly
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All insert cards are included
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The RSVP information is correct
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The envelope has the correct address
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The invitation is facing the right direction
Use the adhesive included on the envelope flap or a strong envelope moistener. For heavier invitation suites, you can reinforce the flap with a small amount of double-sided adhesive.
Make sure the flap and both corners are completely sealed before mailing.
Consider Hand-Delivering Local Invitations
Mailing invitations should still be your main option for guests who live farther away, but you do not necessarily have to mail every invitation.
I personally recommend hand-delivering as many local invitations as reasonably possible. Postage can become extremely expensive when you are mailing a large quantity, especially if the invitations are square, heavy, acrylic, or nonmachinable.
Recruit trusted family members and friends to help. For example, one family member may regularly see a group of relatives, while another can distribute invitations to coworkers, church members, or guests in their neighborhood.
Separate the envelopes into clearly labeled groups so everyone receives the correct invitation. This can save you a fortune in postage without changing the presentation of your invitations.
However, avoid giving someone a large stack unless you trust them to deliver the invitations promptly. Keep a written list of who is responsible for each envelope.
Keep Track of Mailed and Delivered Invitations
Create a guest list checklist before distributing the invitations.
You can mark each invitation as:
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Mailed
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Hand delivered
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Given to a family member
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Delivered
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Returned
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Address needs correction
This is especially useful when several people are helping with deliveries. It prevents invitations from being forgotten or accidentally mailed twice.
You should also keep a few extra invitations and envelopes in case one is damaged, returned, or needs to be sent to an additional guest.
Mail Invitations With Enough Time to Spare
Do not wait until the RSVP deadline is approaching before mailing your invitations.
Allow time for:
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Postal delivery
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Possible delays
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Returned invitations
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Address corrections
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Guests to review the information
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Guests to submit their RSVP
International invitations should be mailed earlier than domestic invitations because delivery times and customs processing can vary.
When mailing internationally, have those envelopes checked separately. International postage, addressing formats, size limits, and weight requirements may differ from domestic mail.
Common Invitation Mailing Mistakes
Some of the most common mailing mistakes include:
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Buying stamps before assembling the full invitation
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Assuming one stamp will cover every envelope
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Forgetting that square envelopes may cost more
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Placing large wax seals on the outside without checking
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Mailing acrylic invitations as standard letters
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Forgetting apartment or unit numbers
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Using an outdated guest address
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Leaving off the return address
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Sealing envelopes before checking the contents
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Waiting too close to the RSVP deadline
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Mailing the entire batch without testing one invitation first
Most of these problems can be prevented by having one completed invitation inspected at the post office.
Final Invitation Mailing Checklist
Before mailing your invitations, make sure you have:
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Confirmed every guest’s name and address
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Included all invitation and RSVP cards
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Added a return address
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Assembled one complete sample
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Checked the total weight and thickness
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Confirmed the correct postage
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Protected acrylic or delicate invitations
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Sealed every envelope securely
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Separated any invitations being hand delivered
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Created a delivery and mailing checklist
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Saved a few extra invitations and envelopes
Final Thoughts
Mailing your invitations properly protects the time, money, and care that went into creating them.
The most important thing to remember is not to guess about postage. Fully assemble one invitation and bring it to the post office before stamping the entire batch. This is particularly important for square envelopes, acrylic invitations, wax seals, ribbon bows, and luxury invitation suites.
Remember, you can always ask a worker at the post office for help!
For local guests, consider recruiting family members and close friends to help with hand delivery. Mailing should remain the primary option for guests who live farther away, but hand-delivering some invitations can significantly reduce your total postage costs.
With a little planning, your invitations can arrive safely, look beautiful, and avoid unnecessary mailing expenses.