ClearPass: Using GMail for SMTP
Using Google Gmail as your ClearPass Messaging SMTP Server
- Navigate to https://Clearpass_IP/
- Click on the "ClearPass Policy Manager"
- Login using user/password = admin/eTIPS123 (use your own user/pw of course)
- Click the Administration Tab on the left window pane
- Within the Administration tab, expand "+ External Servers", then click "Messaging Setup"
- Server name = "smtp.gmail.com"
- User Name & Password = your valid Gmail account settings
- Connection Security = "StartTLS"
- Next, install most of the root certs you can download from this link https://pki.goog/ otherwise you will see errors like this in your event log
- Send Error: Could not convert socket to TLS
- Click the Administration Tab on the left window pane
- Within Administration tab, expand "+ Certificates", then click "Trust List"
- Top right of your screen, click "+ Add" and load the "Root CAs" DER files you previously were instructed to download; these will be enabled automatically as you install them
- You will have to lower your GMail security model or you will get the following error in your event log
- Send Error: 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=X lots of junk X> Please log in via 534-5.7.14 your web browser and then try again. 534-5.7.14 Learn more at 534 5.7.14 https://support.google.com/mail/answer/78754 84-v6sm40676653pfj.33 - gsmtp
- you can read more about this error at this link
- you will need to follow option 2: change your settings to allow less secure apps
- the link at this time to set that up is https://myaccount.google.com/lesssecureapps
- You should now be able to send mail messages from Clearpass via smtp.gmail.com
- see the following link from google's support site with supporting reference information https://support.google.com/a/answer/176600?hl=en
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