Since the Freshdesk Live Chat doesn’t have the option to upload PDFs or other file formats, the only way to reply to tickets with documents is by email.
Emails from email provider protonmail ( @protonmail.com ) are blocked by Niyo’s Google Workspace rules and hence legit privacy centric customers of Niyo cannot interact.
<global@goniyo.com>: host aspmx.l.google.com[142.251.5.26] said: 550-5.7.1 The
user or domain that you are sending to (or from) has a policy that
550-5.7.1 prohibited the mail that you sent. Please contact your domain
550-5.7.1 administrator for further details. For more information, please
visit 550 5.7.1 https://support.google.com/a/answer/172179
h8-20020a1c2108000000b0039774a8c97csi13846598wmh.102 - gsmtp (in reply to
end of DATA command)
----------------------------------------------
message/delivery-status
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Reporting-MTA: dns; mail-4319.protonmail.ch
X-Postfix-Queue-ID: 4LGLG227r5z4wwcr
X-Postfix-Sender: rfc822; <my-email>@protonmail.com
Arrival-Date: Sun, 5 Jun 2022 15:32:10 +0000 (UTC)
Final-Recipient: rfc822; global@goniyo.com
Original-Recipient: rfc822;global@goniyo.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; aspmx.l.google.com
Diagnostic-Code: smtp; 550-5.7.1 The user or domain that you are sending to (or
from) has a policy that 550-5.7.1 prohibited the mail that you sent. Please
contact your domain 550-5.7.1 administrator for further details. For more
information, please visit 550 5.7.1
https://support.google.com/a/answer/172179
h8-20020a1c2108000000b0039774a8c97csi13846598wmh.102 - gsmtp