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Great deliverability without upgrading to dedicated IP. We disagree. Learn more. Reliable delivery for your application emails Postmark delivers your email to customers on time, every time. Avoid Penalties By Understanding Postmarks. Postmarks are imprints applied in black ink on the address side of stamped letters, flats, and parcels.
A postmark shows the name of the United States Postal Service USPS office that accepted custody of the mail, along with the state, the zip code, and the date of mailing. The postmark is generally applied, either by machine or by hand, with cancellation bars to indicate that the postage cannot be reused. If the Post Office location is not indicated on the mail piece then it is has not been postmarked.
Taxpayers who send their payments by mail are cautioned that the Post Office only postmarks certain mail depending on the type of postage used, and may not postmark mail on the same day deposited by a taxpayer. Mailings bearing a permit, meter, or precanceled stamp for postage may not bear a postmark when we receive the payment.
Postmarks are dated by the collection date, not necessarily the day your envelope was dropped off. If you use these types of postage, the USPS will not postmark your mail. It can only be purchased at the time of mailing through the USPS.
Letters and flats that need to be postmarked come from carrier pick-up, collection boxes, retail counters, or lobby drop boxes. Postmarks are not required for mailings bearing a permit, meter, or precanceled stamp for postage, nor to pieces with an indicia applied by various postage evidencing systems. The postmarking process uses the following three basic methods of imprinting:.
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