#!/usr/bin/python3
'''
email.message - EmailMessage Error
Missing white space after folding on ','

https://www.ietf.org/rfc/rfc2822.txt , 2.2.3. Long Header Fields:
Unfolding is accomplished by simply removing any CRLF that is immediately followed by WSP. 
'''
from email.message import EmailMessage
msg = EmailMessage()
msg['To'] = 'Ab Ć<abc@def.com>,Ab Ć<abc@def.com>,Ab Ć<abc@def.com>,Ab Ć<abc@def.com>'
msg['Subject'] = 'EmailMessage Error. Missing white space after folding on ",". https://www.ietf.org/rfc/rfc2822.txt , 2.2.3. Long Header Fields'

print(msg.as_string())
'''
To: Ab =?utf-8?q?=C4=86?=<abc@def.com>,Ab =?utf-8?q?=C4=86?=<abc@def.com>,
Ab =?utf-8?q?=C4=86?=<abc@def.com>,Ab =?utf-8?q?=C4=86?=<abc@def.com>
Subject: EmailMessage Error. Missing white space after folding on ",".
 https://www.ietf.org/rfc/rfc2822.txt , 2.2.3. Long Header Fields
'''