Looks to me that your mail server is requiring authentication of the SMTP session, but there is either no username/password, or a wrong one configured in ClearPass, or you have not excluded your mail server from authentication of mail coming from the subscriber.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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Original Message:
Sent: Jun 03, 2021 05:18 PM
From: Carlos Villanueva
Subject: ClearPass Subscriber doesn't sent sponsor email
Hi Experts!
I have a question.
I have a cluster of 02 ClearPass servers, but when I try to use the self-registration page located in the subscriber server, it doesn't sent the approval email to the sponsor email. In the event viewer, it shows this error message:

Is this normal? Do I have to handle the mailing from the publisher server?
Regards: Carlos Villanueva
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Carlos Villanueva
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