Mailer: smtp
Constants: No
ErrorInfo: SMTP Error: Could not connect to SMTP host. Connection failed. stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages:
error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failedSMTP server error: QUIT command failed
Host: email.wiseinc.com.au
Port: 587
SMTPSecure: tls
SMTPAutoTLS: bool(true)
SMTPAuth: bool(false)
Server:
OpenSSL: OpenSSL 1.1.1n 15 Mar 2022
Debug:
Email Source: WP Mail SMTP
Mailer: Other SMTP
SMTP Error: Could not connect to SMTP host. Connection failed. stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages:
error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failedSMTP server error: QUIT command failed
SMTP Debug:
2024-02-20 16:23:21 Connection: opening to email.wiseinc.com.au:587, timeout=300, options=array()
2024-02-20 16:23:21 Connection: opened
2024-02-20 16:23:21 SERVER -> CLIENT: 220 UC16EX02.wiseinc.com.au Microsoft ESMTP MAIL Service ready at Wed, 21 Feb 2024 03:23:21 +1100
2024-02-20 16:23:21 CLIENT -> SERVER: EHLO www.ast.mw-aws.com
2024-02-20 16:23:21 SERVER -> CLIENT: 250-UC16EX02.wiseinc.com.au Hello [54.153.159.66]250-SIZE 31457280250-PIPELINING250-DSN250-ENHANCEDSTATUSCODES250-STARTTLS250-8BITMIME250-BINARYMIME250 CHUNKING
2024-02-20 16:23:21 CLIENT -> SERVER: STARTTLS
2024-02-20 16:23:21 SERVER -> CLIENT: 220 2.0.0 SMTP server ready
2024-02-20 16:23:21 Connection failed. Error #2: stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages:error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed [/opt/bitnami/wordpress/wp-includes/PHPMailer/SMTP.php line 475]
SMTP Error: Could not connect to SMTP host. Connection failed. stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages:error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed
2024-02-20 16:23:21 CLIENT -> SERVER: QUIT
2024-02-20 16:23:21 SERVER -> CLIENT:
2024-02-20 16:23:21 SMTP ERROR: QUIT command failed:
2024-02-20 16:23:21 Connection: closed
SMTP Error: Could not connect to SMTP host. Connection failed. stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages:error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed
Thanks for the response. For my understanding, are you saying that is a certificate failure on the client’s mail server? They are using a self-signed cert. Do they need to purchase a valid cert & will that solve the issue?
Edit: Also, I did reach out to hosting (AWS) and they provided the same link to the github article.
