Successful direct mail campaigns begin long before your mail enters the USPS system. Address verification, presorting, and automation all play an important role in improving delivery accuracy while reducing postage costs.

What is CASS Certification?

Before a mailing is processed, the mailing list is typically CASS™ Certified. This USPS-approved process standardizes mailing addresses and verifies them against the official USPS database.

CASS Certification helps:

• Improve address accuracy

• Add ZIP+4 codes when available

• Reduce undeliverable mail

• Qualify mail for automation discounts

What is Presorting?

After addresses are verified, mail is presorted based on ZIP Codes and USPS requirements.

Presorting allows businesses to:

• Qualify for lower postage rates

• Improve mail processing efficiency

• Speed delivery through USPS automation

Can Direct Mail Be Tracked?

Yes. Modern Marketing Mail can be tracked throughout the USPS network using Intelligent Mail® barcodes and other USPS tracking technologies. This gives businesses greater visibility into when mail is processed and moving toward delivery.

Why It Matters

Using services like CASS Certification, presorting, and USPS tracking helps businesses improve mailing accuracy, reduce postage costs, and deliver campaigns more efficiently.

At Allmail USA, we provide full-service direct mail solutions that include data management, address verification, presorting, and USPS mailing services to help every campaign perform at its best.

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