# Send a Mail Message

> Sending encrypted mail messages through DekkoCORE.

# Sending a Mail message

There’s two ways to compose a Mail message:

Open the **Contacts** dropdown, hover over a contact and press the **Mail** icon

![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_11.38.32_am.png){width=277}

Select **Mail** in the navigation bar, the press **Compose**

![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_11.39.19_am.png){width=473}

:::tip
If you have **All Hubs** selected, you’ll need to choose a Hub to send the Mail message from
:::

1. In the **To** field, enter contact(s) to send the Mail message to:

    ![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_11.43.11_am.png){width=774}

    Users who are already in the Hub will auto-complete when you enter their name or email address. You can also enter an unregistered address, and that individual will be sent a registration invite, after which they can read the message.

    Unregistered users will appear with their full address -

    ![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_11.48.22_am.png){width=774}

1. Enter a subject and message body:

    ![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_11.54.17_am.png){width=774}

1. If you are adding an attachment, use the **attach from files** (content you’ve already uploaded to the Hub) or **Attach files** (from your computer’s storage):

    ![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_11.55.47_am.png){width=774}

    ![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_11.56.41_am.png){width=774}

    Mail message attachments have no file size limits.

    ![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_11.59.19_am.png){width=774}

    1. When you are ready, press **Send**:

        ![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_12.00.07_pm.png){width=736}

        The message thread will appear in your **Sent** items -

        ![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_12.01.18_pm.png){width=2532}

:::info 📬
Recipient(s) will be notified of your Mail message via email. They must log in to their DekkoSecure account to read the message (content is not expose in email-based notifications).
:::

# Other Mail features

## Read Receipts

The envelope icon will change to **open** when a recipient reads your mail message.

![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_12.04.22_pm.png){width=812}

## Revoke

To revoke a message before it is ready by recipient(s), press **Revoke**:

![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_12.02.08_pm.png){width=812}

:::warning
Revoke will only apply to users who have not read your message.
:::

In the below example, the message will be revoked for John and the unregistered user sally@newco.io:

![](https://help.dekkosecure.com/media/collaboration-in-core-hubs/send-a-mail-message/Screenshot_2023-10-31_at_12.09.00_pm.png){width=812}