- Plesk Obsidian for Linux
Plesk Obsidian is used:
# plesk -v | grep 'Product version'
Product version: Plesk Obsidian 220.127.116.11
After connecting Plesk mail account to Outlook, it returns any of the following error messages after syncing:
CONFIG_TEXT: Message 2536 appears to be a Unicode message and your E-mail reader did not enable Unicode support. Please, use an E-mail reader that supports IMAP with UTF-8(see https://tools.ietf.org/html/rfc6855.html)
CONFIG_TEXT: This E-mail message was determined to be Unicode-formatted but your E-mail reader does not support Unicode E-mail. Please use an E-mail reader that supports POP3 with UTF-8 (see https://tools.ietf.org/html/rfc6856.html)
Courier-IMAP was upgraded to version 5.0.
# rpm -qa | grep courier-imap
The issue may appear in other mail clients also
Courier-IMAP 5.0 implements rfc6855 and rfc6856, which result with an alert in any IMAP/POP3 client on attempt to fetch a mail message with national symbols (UTF-8) in headers. This happens because mail client does not implement properly changes made in rfc6855 and rfc6856.
The improvement for this behavior has been published :
#PPPM-11248 "After update to Plesk Obsidian, IMAP and POP3 mail accounts configured in Outlook now correctly show emails with UTF-8 characters."
- Plesk Obsidian 23 June 2020 (Linux)
If update is not possible for some reason you may try the following