Problem sending the test email.

Replies: 0

Error: There was a problem while sending the test email.
Host: MediaTemple WordPress
SMTP provider: MailJet

Versions:
WordPress: 5.4
WordPress MS: No
PHP: 7.3.12
WP Mail SMTP: 1.9.0

Params:
Mailer: smtp
Constants: No
ErrorInfo: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Host: in-v3.mailjet.com
Port: 587
SMTPSecure: tls
SMTPAutoTLS: bool(true)
SMTPAuth: bool(true)

Server:
OpenSSL: OpenSSL 1.0.1e 11 Feb 2013
SMTP Debug:
2020-04-17 10:31:59 Connection: opening to in-v3.mailjet.com:587, timeout=300, options=array ()

2020-04-17 10:32:00 Connection failed. Error #2: stream_socket_client(): unable to connect to in-v3.mailjet.com:587 (Connection refused) [/var/www/wp-includes/class-smtp.php line 298]

2020-04-17 10:32:00 SMTP ERROR: Failed to connect to server: Connection refused (111)

SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting