About International Mail Service

On October 22, 2015, International Mail Service Inc (IMS) celebrated 25 years in the business of processing foreign mail and packages.  Over that time we’ve maintained the same ownership group and philosophy – provide customers cost effective services and ease of use.

Our customer base has grown to include large printers/publishers, fulfillment houses, universities, domestic mailers, associations, religious organizations, and E-Commerce ventures of all sizes.  You can find IMS customers in almost every state and some foreign countries.

While our parcel business has grown quickly over the last few years, we’ll always be able to process your post cards, letters, and flats too.  Our close relationship with the United States Postal Service (USPS) allows us to offer unique services at highly discounted rates.  Utilizing the USPS means you’re going to get consistent delivery to every country in the world – not just a few industrialized areas.

The attention to detail and customer service IMS provides is unparalleled in this industry.  We make a strong effort to insure that your mail and parcels leave our building with a complete address and your invoice is comprehensive and accurate.  If there is an issue with your mail or packages, we’ll either fix it or contact you to make it right.  We take the “Gatekeeper” responsibility very serious.

If you call our office with a question or quote request, you’ll have a response normally within an hour or two.  Our Sales/Service Representatives can consult on design and service recommendations to insure the best possible value.

Our employees remain a very important part of IMS and we’re very proud of all of them.  They create and employ efficiencies that may go unnoticed to most but allow us to keep costs to a minimum while enabling quick turnaround for your mail and parcels. 

Hopefully this site will educate and serve as a valuable reference tool.  Please let us know how you like it and if you ever pass through Kalamazoo, well, you better stop!

Priority Mail Express International Presort Drop Shipment  |   Priority Mail International Presort Drop Shipment  |  Stamps international services  |  USPS Commercial ePacket, ePacket, FCMI, FCPI, IPA, ISAL, PMEI Drop Ship, PMI Drop Ship, First Class International   |   We specialize in international parcel tracking to all countries.


  • 11/9/17 The Philippines taking 3 days off Nov 13-15 Open or Close


    From: UPU.EmIS
    Sent: Thursday, November 9, 2017 8:36 AM
    Subject: EmIS 108/2017 – Philippines – Special non-working days
    Importance: High

    The designated operator of the Philippines, Philippine Postal Corporation, wishes to inform the designated operators of other Union member countries that, owing to the hosting of the 31st ASEAN Summit and Related Meetings, the Philippine Government has declared 13, 14 and 15 November 2017 special non-working days in the National Capital Region and the provinces of Bulacan and Pampanga. Delivery of all classes of mail (LC/AO, CP and EMS) will be affected.

    Philippine Postal Corporation thanks designated operators for their understanding.


  • 11/9/17 (updated 11/27) Flooding causing delays in Malaysia Open or Close


    From: UPU.EmIS]
    Sent: Thursday, November 9, 2017 5:10 AM
    Subject: EmIS 107/2017 – Malaysia – Flooding
    Importance: High

    The designated operator of Malaysia, Pos Malaysia, asks us to inform the designated operators of other Union member countries that flooding in the State of Penang has been disrupting collection and delivery of all mail products since Sunday, 5 November 2017.

    The following postcode areas are affected: 10000, 10050, 10100, 10150, 10200, 10250, 10300, 10350, 10400, 10450, 10460, 10470, 10500, 10502, 10503, 10504, 10505, 10506, 10508, 10512, 10514, 10516, 10518, 10524, 10534, 10538, 10540, 10542, 10546, 10550, 10551, 10552, 10558, 10560, 10564, 10566, 10570, 10576, 10578, 10582, 10590, 10592, 10593, 10594, 10596, 10600, 10604, 10609, 10610, 10612, 10620, 10622, 10626, 10628, 10634, 10646, 10648, 10660, 10661, 10662, 10670, 10672, 10673, 10674, 10676, 10690, 10710, 10720, 10730, 10740, 10750, 10760, 10770, 10780, 10790, 10800, 10810, 10820, 10830, 10840, 10850, 10910, 10920, 10990, 11000, 11010, 11020, 11050, 11060, 11100, 11200, 11300, 11400, 11409, 11500, 11600, 11609, 11700 and 11800.

    Pos Malaysia thanks designated operators for their understanding and cooperation; it will inform them as soon as the situation returns to normal.

    UPDATED 11/27/17:  The flooding issues ended on 11/10/17, all services are back to normal.


  • 9/22/17 (updated 10/30) All services suspended in Dominica Open or Close


    From: UPU.EmIS
    Sent: Friday, September 22, 2017 5:42 AM
    Subject: EmIS 81/2017 – Dominica – Hurricane Maria
    Importance: High

    The Secretariat of the Caribbean Postal Union (CPU), on behalf of the designated operator of Dominica, the Dominica Postal Service, asks us to inform the designated operators of UPU member countries that all postal services have been suspended in the aftermath of Hurricane Maria.

    As reported by the Prime Minister, many buildings, private and public, including the main general hospital and those serving as hurricane shelters, were compromised.   There is no communication with the communities outside of the capital Roseau, but people who have walked into the capital from outlying areas report that all homes have been destroyed.  There is no electricity, running water, or telecommunication services.  There is an urgent need for tarpaulins and other relief supplies.

    The CPU Secretariat, on behalf of the Dominica Postal Service, thanks all designated operators for their understanding. It will inform them via EmIS as soon as the situation returns to normal.

    Updated 10/27/17:  All services have been restored.


  • 9/21/17 Earthquake interrupts service in Mexico Open or Close

    The designated operator of Mexico, Servicio Postal Mexicano, has informed the USPS that due to the earthquake that struck Mexico on Tuesday, 9/19, operations at Mexico City International Airport have been temporarily halted.  The USPS is continuing to accept mail for Mexico and currently expects to resume dispatches on Monday, 9/25.  Customers may anticipate delivery delays. 

    Further updates will be provided as additional information is received.

  • 9/20/17 Hurricanes Irma and Maria service update Open or Close

    From: UPU.EmIS
    Sent: Wednesday, September 20, 2017 10:45 AM
    Subject: Situation in the Caribbean following hurricanes Irma and Maria

    La Poste, the designated operator of France, wishes to inform the designated operators of UPU member countries that the extreme weather conditions in the Caribbean, strongly affected by hurricanes Irma and Maria, have seriously impacted its operations in the following territories: Saint Martin (French part of the Island); (SXM and SFG); Saint Barthélemy (SBH); Guadeloupe (PTP); and Martinique (FDF).

    Situation on 20 September 2017 :

    • Saint Barthélemy: all addresses with postcode 97133: no postal services available until further notice;
    • Saint Martin (French part of the Island): all addresses with postcode 97150: no postal services available until further notice;
    • Guadeloupe: all other postcodes starting with 971: operations heavily impacted; expect delays in delivery services in most areas of the territory. Flights to PTP are often cancelled and/or dedicated to first aid response for the populations of Saint Martin and Saint Barthélemy;
    • Martinique, postcodes starting 972: postal services are OK, but flights to this destination are also heavily impacted; expect delays and disruption.

    La Poste will provide an update on the situation via EmIS in the coming days.

  • S Korea Post will be closed 9/30 - 10/9 (10 days) Open or Close


    The designated operator of Korea (Rep.), Korea Post, would like to inform the designated operators of other Union member countries that there will be an unprecedented and unexpectedly prolonged operational stoppage for 10 days in a row owing to the combination of various holidays: Chuseok (Korean Thanksgiving), Hangul Proclamation Day, and the specially designated one-time holiday which was officially announced on 5 September 2017.

    The 10-day holiday will run from September 30 to October 9, 2017. With Monday, 2 October 2017 being designated as a one-time holiday, there will be an extended shut-down of the office of exchange, domestic mail centre and delivery office.

    Korea Post is informing designated operators of this newly added one-time holiday with the understanding that most designated operators sending mail to Korea (Rep.) may not be aware of it.

    Korea Post thanks designated operators for their understanding and cooperation.


  • 9/5/17 Landslides in Switzerland Open or Close

    Swiss Post (CH) would like to inform all IPC members that a landslide occurred on 23rd August 2017 and affecting Bergell/Egadin (Canton Graubünden) in the Eastern part of Switzerland is making it difficult, and in some parts even impossible, to deliver postal items in the postcode areas 7602 – 7610. Some households will stay evacuated for the next two months or even longer until the imminent danger of landslides has passed.

    We'll update as information becomes available.




    What we’ve learned about tracking packages …….

    1. Packages will get an acceptance scan at IMS the same day we receive the packages.  This includes the PMEI – PMI services, Commercial ePacket, and packages sent via IPA (Endicia integrations only).
    2. The number of scans a package gets will vary by service. Packages sent via the PMEI and PMI services will normally get more scans (visibility) while the ePacket service will average about 3-5 scans including the acceptance scan and delivery scan.
    3. Some countries are better at this than others. In order for the USPS to include a country for the ePacket service as an example, they must be able to give a delivery scan on 90% plus of the packages – our overall average has been 95% plus.  A delivery scan is not guaranteed.
    4. Just because a package does not show scans does not mean it is not moving. Sometimes barcodes are smudged, torn, or any number of other things that can render them “unreadable”.  It can also mean that someone on the other end just for whatever reason didn’t scan a package – it happens. The 5% on average that don’t get a delivery scan are more than likely to have been delivered, just not scanned upon delivery.
    5. If customs holds a package (for whatever reason), they are “supposed” to notify the recipient.  We have no control over whether that’s done or not. 
    6. Packages may go into a seemingly black hole with no activity for a period of time.  Australia as an example, only gives us a delivery scan for ePacket packages – no scans when passing through customs, etc.  Again, this does not mean your packages are not moving and/or delivered (see #8 below).
    7. If a package shows to have passed through customs or a “facility” and then goes dormant for a few days, have your customer check with their local post office as they could be holding it.
    8. You can also enter your USPS tracking numbers on the foreign post’s website and SOMETIMES get additional scan activity.  Ask us and we'll send you the links.
    9. In some extenuating circumstances, we can enlist the help of contacts we have at USPS headquarters in DC, but that’s not an option when looking for a single package.

    I hope this helps when fielding customer inquiries and managing expectations.


  • USPS postage rate changes (Aug 20, 2017) Open or Close

    July 25, 2017

    Subject: Some USPS postage rates increasing on August 20, 2017

    Dear IMS customer,

    The United States Postal Service (USPS) is increasing rates for segments of the International Priority Airmail (IPA) and International Surface Air Lift (ISAL) services on August 20, 2017. As you know, our normal rate changes take place in January so this is unusual. This is not a standard postage increase but rather the result of renegotiated contracts per the USPS notification below:

    United States Postal Service has notified partners with Negotiated Service Agreements of a price increase for International Priority Airmail (IPA) and International Surface Airlift (ISAL) effective August 20, 2017. The increase was planned to coincide with contract renewals which expired in June; however, we granted additional time to allow for coordination of technology changes and client notification. The decision was made to modify the contracts to reflect shape-based pricing to align with our increased costs in these products.

    Here’s how the following service groups will be affected (percentages are based on the average of all country groups and piece weights, your actual costs could vary accordingly):

    • Commercial ePacket (CeP): No changes
    • PMEI and PMI (both Standard and Presort Drop Ship): No changes
    • IPA Letters: Increase of 5.4%
    • IPA Flats: No changes
    • IPA Packages: No changes
    • IPA M-bags: No changes
    • ISAL Letters: Increase of 16% (Note: It will be much cheaper to route all Letter size pieces via IPA)
    • ISAL Flats: Increase of 3.5%
    • ISAL Packages: Increase of 3.5%
    • ISAL M-bags: No changes

    Because costs can vary by destination country, piece size, and weights, we recommend that certain mailings/shipments be quoted if questions. As we’ve always done for customers, we’ll recommend one service over another when it’s advantageous for the customer both rate and service wise.  Here’s what we’ll be looking at for items sent IPA and ISAL only:

    • Letters: Routing all via IPA (cheaper and faster).
    • Flats: With the increase to ISAL (and not to IPA), it becomes cheaper to route certain countries (most notably, Canada) via IPA.
    • Packages: Routing all via IPA.

    We’re hoping to have rates emailed to all customers within a week. Your business is important to us – we’ll strive to provide the best possible rate and service for customers of all sizes. Thanks for your business!


    Mark Bouman, Business Development, Principal

    International Mail Service Inc (IMS)



  • 4/30/17 Japan added to ePacket list Open or Close

    Effective April 30, 2017 the Commercial ePacket service will be available to Japan bringing the total number of countries to 30 with more being added.  Japan will be in the newly created Country Group 6.  Related, Brazil will be moved from Country Group 15 to Country Group 10.

    Please let us know if you'd like information about this or other IMS Parcel Services.


IMS provides a professional expertise that is appreciated. They have taken care of our international mailing needs for over 15 years, regardless of the mailing requirements. They are a true partner when it comes to delivering exceptional service.

Kerry Still - Mail Services Manager, Walsworth

We have been utilizing IMS since the early 1990’s and we would not consider working with anyone else. IMS sets the bar by which we measure our other vendors. Their approach to customer service, their integrity, and their dedication to meeting our needs brings considerable value to our company every day.

David C. Rhoa - President, Lake Michigan Mailers, Inc.