Guides for Card Sellers Who Ship Envelopes

What actually happens after you drop that envelope in the mailbox — a stage-by-stage look at the real journey, plus the full scan code reference.

The approved ~6% peak-season increase on packages runs Oct 4 through Jan 17. Plus USPS's recommended holiday mail-by dates and everything else that changed for packages in 2026.

Live, aggregated data on where USPS transit times are running on pace vs. slow right now — refreshes every ~15 minutes from real scan data.

Live, aggregated average delivery time by state, sorted fastest to slowest — refreshes every ~15 minutes from real scan data.

The Delivering for America restructuring, network consolidation, and what it means for letter mail in 2026.

First-Class Forever® Stamps increase from $0.78 to $0.82. What it means for PWE sellers and how to make every envelope count.

Tape glare, print alignment, and surface flatness can all keep a valid barcode from being read. Here's what actually causes it, and what to do about each one.

Packages under 1 lb to rural ZIPs now billed at the 15.99 oz rate. What changed, who's affected, and what to do about it.

What an IMb encodes, how Informed Visibility works, why scan coverage varies, and what scan events mean for your shipments.

How to respond, what scan data proves, and when to issue a refund vs. push back with evidence.

Forever stamps, online postage, or a 4×6 label with tracking built in, and a record of what you paid on every order.

What the DMM actually says, what triggers the $0.49 surcharge, and how smart packing keeps your envelopes machinable even on large orders.

Cover PWE orders against non-delivery. Small per-order fee on first scan, up to $50 payout for orders that don't deliver.

Selling outside TCGplayer? Upload a CSV with your buyer list and get full USPS mailstream tracking on every envelope.

Why TCGplayer PWE orders have no tracking numbers, and how IMb barcodes give sellers real mailstream visibility.

If you can export orders to a CSV — from eBay, Whatnot, Mercari, or anywhere — you can track every envelope.

Both tools serve card sellers, but they solve different problems. An honest breakdown of what each does well.

Want the best tracking results and the lowest cost per shipment? Here's exactly what to do.

Why PWE mail has no native tracking, how IMb barcodes fill the gap, and what sellers can see in the USPS mailstream.

What Scan Rate and Delivery Rate measure, how they're calculated, and how to read them together.

Every address result explained — barcode generated, not found, missing unit, validation unavailable — and what to do for each.

Short walkthroughs of the full workflow — processing your first job, reading address results, and understanding your dashboard.