Encrypt a mail with S/MIME
To encrypt a mail with S/MIME, add your recipients in new compose, click the shield icon and turn on Encrypt for recipients. XgenPlus checks each recipient's certificate as you go. Send once it says all recipients are eligible. If anyone lacks an active S/MIME certificate, encryption is blocked until you remove them.
How to encrypt a mail with s/mime
- Open new compose and add your recipients.
- Click the shield icon and turn on Encrypt for recipients.
- Wait for the certificate check to finish.
- If some recipients have no certificate, remove them or send them a separate mail.
- Click Send.
When to use it
A hospital at example.in sends patient reports to a partner lab whose staff hold certificates. The reports are encrypted, so only the lab staff named in the mail can open them.
Status messages
| Message | Meaning |
|---|---|
| Checking recipient certificates | XgenPlus is checking the recipients you added. |
| All recipients are eligible | You can send encrypted. |
| Cannot encrypt because some recipients do not have active S/MIME certificates. | Remove those recipients or turn encryption off. |
| Add at least one recipient before enabling encryption. | Add recipients first. |
Good to know
- Encryption and signing can be used together.
- Delivery reports are turned off while S/MIME is on.
- You need your own active certificate before you can encrypt.
Common questions
What happens if I reply to an encrypted mail without encryption?
XgenPlus stops the send and asks you to confirm that you really want to send the reply unencrypted. Keep encryption on unless you are sure.
Can I encrypt mail to someone outside my organisation?
Only if XgenPlus knows an active S/MIME certificate for that person. Otherwise the check reports that they are not eligible.