Product Update - Minor Updates to v6.7.0

This is a minor update that includes the following bug fixes.

UPDATEDESCRIPTION
FixedSelective instances of access token regeneration failures for Email App assets that use SMTP protocol with OAuth 2.0 for sending emails.
FixedThe limitation on Sandbox that restricted users with a Webex Connect account on AWS Oregon from signing up for the new Sandbox.
FixedEmail App Asset configuration (when using STMP protocol with OAuth authentication for sending email) is failing for users who are logged in using Webex SSO.
FixedEmail 'Read' delivery notifications were not being sent and ‘Email Opens’ were not being tracked for outbound emails sent via Email nodes (using AWS SES route) that were configured before v6.3.0, and were never updated after that. This issue was being observed since v6.6.2.
FixedNot able to send more than 20 options/items as part of an Apple Messages for Business List Picker message. The limit has been increased to 50 items in a single List Picker message.