How to write to someone at Giles W. Dalby Unit
Personal letters for people at Giles W. Dalby Unit go to Texas's mail center below, not to the prison. Fill in the person's name and ID number where marked.
Checked against the department's own pages . How we check, and corrections
PERSONAL LETTERS GO TO
Dashed lines are for you to fill in, in the department's own words.
Send personal letters, cards and photos to: Texas Department of Criminal Justice, inmate's full first and last name + TDCJ number, PO Box 660400, Dallas, TX 75266-0400. Mail missing the full name or TDCJ number is returned. Legal mail, books, magazines and packages go to the unit address instead.
Legal mail from lawyers and courts has its own address or rules: see the department's mail page.
- Where letters go
- To a department-wide mail center, not the prison
- What happens to them
- Scanned
- What they get
- A printed copy or a copy on their tablet
“Digital mail is your original postal mail that is scanned and delivered straight to the inmate’s secured tablet.” Department source
Street address (not for letters unless the department says so): 805 N Avenue F, Post, TX 79356
“Only written correspondence, greeting cards, drawings, and photos will be accepted for scanning.”
No one at Giles W. Dalby Unit is listed yet. Know someone there who wants mail? List them for $50.
Securus eMessaging
You start it from outside.
- Create a Securus Online account at securustech.net or in the Securus mobile app.
- Find the person you want to write to and add them as a contact.
- Buy a book of stamps. The price per stamp is shown once you pick the person, because it varies by facility.
- Write and send your message. Attach a return stamp if you want them to be able to reply.
- The person inside cannot message you until you have added them and sent the first message.
Questions
What is the mailing address for Giles W. Dalby Unit?
Personal mail goes to the department's mail center: Texas Department of Criminal Justice, Inmate’s Full First and Last Name + TDCJ Number, PO Box 660400, Dallas, TX 75266-0400.
Is mail scanned at Giles W. Dalby Unit?
Yes. Personal letters are scanned at a department-wide mail center. The person receives a printed copy or a copy on their tablet.
Can I message someone at Giles W. Dalby Unit electronically?
Texas uses Securus eMessaging. On Securus eMessaging, you make an account, add the person by name and ID number, and pay per message.
Can someone at Giles W. Dalby Unit be listed on a pen pal site?
Texas bars anyone serving a sentence that requires sex offender registration from being advertised on a pen-pal website, even when someone else places or pays for the ad. For everyone else, Texas has no rule against being listed. We still list people there after the family confirms they understand.
Something wrong or out of date? Tell us and we fix it from the department's page. How we check.
Sources: Giles W. Dalby Unit page, Texas mail rules, read 2026-10-07. Rules change; the department's page is the final word. Find someone: official inmate locator.
How to write your first letter · All Texas prisons and rules