Envelopes

Relyco’s line of envelopes offer a solution whether you are mailing a confidential document, or a direct mail piece designed to be noticed. We offer laser compatible* tinted security envelopes that are guaranteed for machine insertion, even if your mail piece requires a “bottom flap” or “reverse flap” envelope.

Direct Mail or In-House Print Shops that want the economy of a memjet envelope, but need the color to stand out select our DURASEAL envelopes for Memjet.

* Printer testing recommended, not all devices are compatible

  • DURASEAL Envelopes

    DURASEAL offers secure, stylish, or custom envelopes for all your mailing needs. From security envelopes for protecting sensitive documents to custom envelopes offering unlimited design flexibility, Relyco has the business envelope for your need.

  • DURASEAL Inkjet Envelopes

    DURASEAL Inkjet envelopes offer printer users the ability to print full color envelopes offering the industry’s best performance and highest image quality.

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Client Stories


We knew that having the right envelope was important—and we knew that our most valuable resource, as always, was Relyco. The team at Relyco is extremely responsive and customer focused, with the expertise to know exactly the right solutions to meet our needs.

Cook Illinois Corporation logo
Assistant to the President and Chief Financial Officer, Cook Illinois Corporation
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