Best Business Mailing Envelopes of 2025

"I appreciate the high quality of Aimoh #10 Security Tinted Self-Seal Envelopes! They have enough self-adhesive and are true-to-size at over 4 inches by 9 1/2 inches. I previously bought similar envelopes from UPS, but they were non-functional. Great job, Aimoh!"

"These envelopes are exactly what I needed. No licking required since they're self-adhesive. I'm really pleased with their privacy protection, as no one can look through them!"

"I ordered these because my previous security envelopes were see-through. Thanks to the Amazon reviewers, I found Aimoh envelopes. They arrived in perfect condition, and the dark inner pattern ensures privacy. Highly recommend!"

"These #10 self-sealing security envelopes have become essential for my business. Their top-notch privacy ensures no one can see through them. The self-sealing feature saves me from the unpleasantness of licking envelopes. The quality is outstanding, and the price is unbeatable. I have complete confidence in using these for all my correspondence and will definitely restock without hesitation!"

"For my mail campaigns, buying 500 every few months is convenient. These are a cheap alternative to my previous purchases, and the quality is honestly great! They seal nicely, and although they're not as thick as high-end envelopes, they outperform some pricier options. I will definitely purchase these again."

"My wife and I participate in a Christian outreach program involving letter writing. We send over a hundred letters each month, so we need to buy at least two boxes of envelopes annually. Finding good quality envelopes at a reasonable price is essential for us, and we've been using this brand for the past four years."

"I've found these envelopes to be unbeatable for my mailing needs. The #10 size works perfectly for letters and invoices, and the thick paper quality feels professional. The self-sealing feature is a huge time-saver for high-volume mailings!"

"These are by far the best envelopes I've used for my small business. They feed into the printer without jamming, and I can stack multiple envelopes in the feeder. I will definitely keep buying these!"

"I just finished my first box of 500 and I'm ready to order more. While they might not be top quality, they are the best value I've found. The quick seal sticker works great, and they come in a compact box for easy storage."

"I'm really pleased with these 100 mailing envelopes! The self-seal feature is incredibly convenient and saves time—no more licking or taping. The quality is excellent, feeling sturdy and reliable, perfect for sending letters or documents without any issues. For the price, getting 100 envelopes of this quality is a fantastic value. They're a good standard letter size and work perfectly for my everyday mailing needs. If you're looking for affordable, high-quality envelopes that get the job done, I highly recommend these!"

"I found this to be a great value on high-quality mailing envelopes that are easy to use, seal, and secure."

"This is an excellent product! I was writing letters for Vote Forward to encourage voter participation and ran out of envelopes. I ordered these late in the day, and they arrived the next afternoon. The quality paper and ample adhesive were impressive, along with the really fast shipping and great price!"

"I often use these #10 envelopes for letters, invoices, and documents. They never disappoint with their durable quality and professional appearance. I highly recommend them for both home and office use!"

"I was initially worried about the quality, but I was pleasantly surprised. You get a lot more in this package compared to local stores, making them worth every penny!"

"For our Property Owners Association, I needed envelopes quickly. These are made from heavy material and are very secure. The seal is easy to peel off, and I received them the same day!"

"I found the self-seal feature to be incredibly convenient and hygienic. These envelopes have become a staple in our office for mailing documents quickly without any mess. The thickness ensures that my sensitive information stays protected during transit."

"I was surprised by the great quality of these envelopes. They arrived perfectly packaged, and the adhesive seals work wonderfully. I can confidently say they are not flimsy or sheer at all. I’m absolutely pleased with my decision to choose these."

"While these envelopes are nice and easy to use, I did notice that the smooth surface caused some issues with my laser printer. It runs them but requires a bit of babysitting to ensure they come out correctly. However, they still offer a good value overall."

"I find these envelopes good enough for my needs. The glue works well, and I'm happy with the price range."

"The quality is great, and I appreciate the small quantities available for personal use."

"I really like the ease of sealing these envelopes without licking them, and I feel secure knowing they are not see-through!"

"I find these envelopes to be great; they are truly security envelopes since you can't see through them."

"I appreciate that they peel off easily and the glue sticks really well. They are also thick!"

"After switching from Walmart, I was surprised by the quality. I've printed 200 so far with only 2 issues. They seal nicely, and I plan to keep buying them."

"I really dislike licking envelopes, and I hate extra garbage. These envelopes are the perfect compromise—self-sealing without creating trash. They work perfectly with my QuickBooks checks for paying bills and payroll in my small business."

"These are just what I needed for my QuickBooks checks! They arrived on time and are not flimsy at all. I feel like this will save me so much time."

"I found these envelopes to be a perfect fit for my payroll checks. They keep everything in place, and the fact that they are self-adhesive means I don’t have to worry about licking the flap. Great quality overall!"

"I find the price very affordable, and the quantity is just right for my needs. The security tint provides great privacy, and the seal is strong and reliable."

"I print sports and event order forms on these privacy envelopes. They are well-glued and don't fall apart in the printer. Once sealed, they stay closed, and the glue has very little taste! I love the great price and quick shipping from Amazon!"

"These envelopes are perfect for my business. They're not too thick but offer decent quality for the price. I appreciate that they're easy to use, and I don't have issues with them unsealing when I use a damp cloth."