Does the mail go out with live stamps?

On letters, yes. Yellow Letter HQ says it uses a live stamp on all letter orders, excluding full view envelope orders. Live stamps are not used on postcard orders.

Why does an address on my proof not match my list?

During proof processing the list is run through the NCOA database, which updates the mailing address of any prospect who has moved and filed a change of address with the post office.

Can I turn off the list scrubbing?

Yes. Checking the "Turn off upload tool" box disables pre-scrubbing of the list, but the company notes this also turns off the removal scrubber, because the checkbox controls both features together.

How do I qualify for nonprofit postage rates?

Approval has to come from the Post Office. The FAQ says being designated a nonprofit by the IRS does not by itself allow mailing at nonprofit rates; you create a USPS account and complete form 3624.

Direct mail & outbound

Yellow Letter HQ

Yellow Letter HQ is a direct mail company for real estate investors and mortgage brokers. It prints and mails yellow letters, real handwritten cards, postcards, and full view envelope letters, and also sells mailing lists through ListSource.

Campaigns are built through an upload tool the company calls the Budget Maximizer. It combines multiple small lists into one larger campaign to earn quantity discounts, assigns a separate tracking phone number to each list, and scrubs records before printing: NCOA forwarding checks, CASS address accuracy, delivery point verification, duplicate property address removal, address standardization, autofill of "property owner" where the name field is blank, and conversion of impersonal trust names into a family name. The tool can be switched off with a checkbox, though the site notes that also disables the removal scrubber. Orders go through a proof step, and the company states a target turnaround of 2-3 days.

After mailing, clients receive account notifications once an order is delivered to the post office, the same day or the following morning, plus a tracking link, and the mailing schedule can be synced to Google Calendar. Live stamps are used on all letter orders except full view envelope orders; postcard orders do not use live stamps. The FAQ also walks through applying for nonprofit postage rates, which requires a USPS account and form 3624 rather than an IRS nonprofit designation alone.

What to check directly: prices are listed per product on the site and vary with volume, so confirm current per-piece pricing, list costs, and turnaround before scheduling a campaign. The contact page gives 45 Broadway, Chula Vista, CA and (858) 412-3370.

Best for

Real estate investors and mortgage brokers running motivated-seller mail campaigns who want list scrubbing, per-list tracking numbers, and a fast turnaround, and are comfortable ordering and tracking campaigns through an online portal.

What they do

Yellow letters
Real handwritten cards
Postcard campaigns
Full view envelope letters
Mailing list purchase through ListSource
List scrubbing (NCOA, CASS, delivery point verification)
Tracking phone numbers assigned per list
Mailing schedule syncing to Google Calendar

Details

Attribute	Value
How they charge	Priced per product with quantity discounts for larger campaigns; the site lists real handwritten cards starting at $1.051.

What stands out

Upload tool combines multiple small lists into one campaign for quantity discounts and assigns a different tracking phone number to each list.
Lists are run through NCOA, CASS, and delivery point verification, and duplicate property addresses are removed before printing.
States a target turnaround of 2-3 days from order to mailing.
Uses a live stamp on all letter orders except full view envelope orders; postcard orders do not get live stamps.

Common questions

Does the mail go out with live stamps?: On letters, yes. Yellow Letter HQ says it uses a live stamp on all letter orders, excluding full view envelope orders. Live stamps are not used on postcard orders.
How do I know when my order has been mailed?: Notifications are sent to the account after the order is delivered to the post office, the same day or the following morning, along with a tracking link to follow the order's progress.
Why does an address on my proof not match my list?: During proof processing the list is run through the NCOA database, which updates the mailing address of any prospect who has moved and filed a change of address with the post office.
Can I turn off the list scrubbing?: Yes. Checking the "Turn off upload tool" box disables pre-scrubbing of the list, but the company notes this also turns off the removal scrubber, because the checkbox controls both features together.
How do I qualify for nonprofit postage rates?: Approval has to come from the Post Office. The FAQ says being designated a nonprofit by the IRS does not by itself allow mailing at nonprofit rates; you create a USPS account and complete form 3624.