Ok, back again. Since today the followong error occurs again:
Versions:
WordPress: 4.9.6
WordPress MS: No
PHP: 7.1.17
WP Mail SMTP: 1.2.5
Params:
Mailer: smtp
Constants: No
ErrorInfo: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Host: smtp.office365.com
Port: 587
SMTPSecure: tls
SMTPAutoTLS: bool(true)
SMTPAuth: bool(true)
Server:
OpenSSL: Yes
SMTP Debug:
Re-installing the Plugin did not work this time. Any ideas? Thx.