# Obtaining an integrity certificate | SmartMail Documentation

> The SHA-256 summary of the raw email in the archive is recalculated and compared with the value at the time of archiving; the result is a printable document.

Source page: https://dblinx.net/en/smartmail/belgeler/kullanici/butunluk-belgesi

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# Obtaining an integrity certificate

Every email is archived unchanged at the moment it is received or sent, and its SHA-256 hash is recorded. The **Integrity certificate** recalculates this hash now and compares it.

- User who can see the email

## How to obtain an integrity certificate?

Every email is archived unchanged at the moment it is received or sent, and its SHA-256 hash is recorded. Who can do this: a user who can see the email. The integrity certificate recalculates this hash now and compares it. With Legal hold on the same card, the email is protected from permanent deletion. Open the email and click Integrity certificate on the Summary & Metadata tab in the right panel.

## Steps

Open the email and, in the **Summary & Details** tab in the right panel, click **Integrity document**. The document opens in a window.

Read the result 1 and the recalculated summary 2. The **QR code** in the window 3 carries the result, the two SHA-256 digests, the archiving and verification time, and the link included in the email; when you print the document, these values can be read with a phone.

If needed, click **Print** 4; only the document is printed.

- 1Email unchanged

- 2Recalculated summary

- 3QR code

- 4Print as document

Integrity certificate, with demo data.

Possible results: **Verified** (the email has not changed since it was archived), **Does not match**, **Not found in archive**, **This email was not archived**. The document includes the Message-ID, archive key, archive time and two SHA-256 values.

**For administrators** From the same card, **Place on legal hold** protects the mail against permanent deletion.

## Related pages

- [Compliance and archive](/en/smartmail/belgeler/yonetici/uyum-ve-arsiv)

- [Archiving](/en/smartmail/belgeler/kullanici/arsivleme)