I have a local setup of simple news that works perfect. But when I move simple news to my production server I get a PHP Mail error when cron runs to send mail or when sending test email.
The error
Error: Call to undefined method Drupal\Component\Utility\Unicode::mimeHeaderEncode() in Drupal\simplenews\Mail\MailEntity->getFromFormatted() (line 172 of /public_html/modules/contrib/simplenews/src/Mail/MailEntity.php).
On my local machine where simple news mail sending works the PHP version is PHP 8.1.0
On production site that gives error the php version is PHP 8.1.6
Or is my production server configured wrong?
I am using drupal/simplenews dev-3.x (4557ac5) but dev-3.x (7c2042a) is available for upgrade.
Fixed
3.0
Code
Update dev-3.x (4557ac5) to dev-3.x (7c2042a) and now it works :)
Automatically closed - issue fixed for 2 weeks with no activity.