Troubleshooting a cannot select INBOX, is this a valid transport? Error
Admins may encounter the following error when configuring support department mail importing via POP or as a notification email:
cannot select INBOX, is this a valid transport?
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Solution
To fix this issue:
- Click Edit at Configuration > System Settings > Support Departments.
- Change Port from 993 to
995
. - Click Save Changes.
This will resolve the error.
