Perhaps poor service is the reason, especially for first-class mail.

Last year the service delivered 85.8 billion pieces of first-class mail.

The proposal does not affect the 32-cent rate for first-class mail that took effect last year.

It had come by first-class mail and was heavily sealed.

An example of first-class mail is a typed letter or one written by hand.

In the country as a whole, service improved 4 points, with 87 percent of first-class mail arriving on time.

They also accounted for some two-thirds of the $32 billion spent on first-class mail.

Attempts to improve first-class mail service have also been unsuccessful.

It's inevitable that complaints focus on the price of first-class mail, because that's the service most people use.

The volume of first-class mail fell about half a percent last year and is expected to continue dropping over the next decade.

Rate increases for other categories, such as first-class mail, are in the single digits.

Nationally, 85 percent of first-class mail arrives perfectly on schedule.

Every day, some two million Netflix envelopes come and go as first-class mail.

By comparison, domestic first-class mail requires a search warrant to be opened.

First-class mail prices are based on both the shape and weight of the item being mailed.

Under the law, however, clerks cannot refuse to ship priority or first-class mail.

The Edwards letters went out by first-class mail, usually considered an extravagance in political campaigns.

As a result, much of the fixed costs of the system are borne by first-class mail.

"The potential loss of substantial first-class mail volume creates a daunting challenge."

But the stamp for first-class mail will be black, re-igniting a 150-year-old dispute.

The proposed five-cent increase in first-class mail is the biggest since universal rates were introduced 127 years ago.

About two million prescriptions a day - roughly one-fifth of the total - are delivered by first-class mail.

Moreover, the plan doesn't touch a growing abuse - mass mailings to targeted groups of voters by first-class mail.

"We now have competition at every level - from express mail to first-class mail.

They said that 95 percent of first-class mail in Orlando is delivered in one day, and only a tiny fraction takes longer than three days.