Replies: 0
Hello, I know, another 5.7.3. error but none of the other threads in this forum have provided a solution. I have already checked that Azure Security Defaults are off. SPF record has been completed with the server IP. Password is correct as I can use it to log in to OWA.
This is my log. Any insights would be majorly appreaciated.
Versions:
WordPress: 5.4.1
WordPress MS: No
PHP: 7.3.18-1+0~20200515.59+debian9~1.gbp12fa4f
WP Mail SMTP: 2.0.1
Params:
Mailer: smtp
Constants: No
ErrorInfo: SMTP Error: Could not authenticate.
Host: smtp.office365.com
Port: 587
SMTPSecure: tls
SMTPAutoTLS: bool(true)
SMTPAuth: bool(true)
Server:
OpenSSL: OpenSSL 1.1.1g 21 Apr 2020
SMTP Debug:
2020-06-05 10:02:53 Connection: opening to smtp.office365.com:587, timeout=300, options=array ()
2020-06-05 10:02:53 Connection: opened
2020-06-05 10:02:53 SERVER -> CLIENT: 220 AM3PR07CA0065.outlook.office365.com Microsoft ESMTP MAIL Service ready at Fri, 5 Jun 2020 10:02:53 +0000
2020-06-05 10:02:53 CLIENT -> SERVER: EHLO www.adpsecurity.be
2020-06-05 10:02:53 SERVER -> CLIENT: 250-AM3PR07CA0065.outlook.office365.com Hello [188.166.52.18]250-SIZE 157286400250-PIPELINING250-DSN250-ENHANCEDSTATUSCODES250-STARTTLS250-8BITMIME250-BINARYMIME250-CHUNKING250 SMTPUTF8
2020-06-05 10:02:53 CLIENT -> SERVER: STARTTLS
2020-06-05 10:02:53 SERVER -> CLIENT: 220 2.0.0 SMTP server ready
2020-06-05 10:02:53 CLIENT -> SERVER: EHLO www.adpsecurity.be
2020-06-05 10:02:53 SERVER -> CLIENT: 250-AM3PR07CA0065.outlook.office365.com Hello [188.166.52.18]250-SIZE 157286400250-PIPELINING250-DSN250-ENHANCEDSTATUSCODES250-AUTH LOGIN XOAUTH2250-8BITMIME250-BINARYMIME250-CHUNKING250 SMTPUTF8
2020-06-05 10:02:53 CLIENT -> SERVER: AUTH LOGIN
2020-06-05 10:02:53 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2020-06-05 10:02:53 CLIENT -> SERVER: aW5mb0BhZHBzZWN1cml0eS5iZQ==
2020-06-05 10:02:53 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2020-06-05 10:02:53 CLIENT -> SERVER: M0Z0ejMjV1YzZ0Zt
2020-06-05 10:02:58 SERVER -> CLIENT: 535 5.7.3 Authentication unsuccessful [AM3PR07CA0065.eurprd07.prod.outlook.com]
2020-06-05 10:02:58 SMTP ERROR: Password command failed: 535 5.7.3 Authentication unsuccessful [AM3PR07CA0065.eurprd07.prod.outlook.com]
SMTP Error: Could not authenticate.
2020-06-05 10:02:58 CLIENT -> SERVER: QUIT
2020-06-05 10:02:58 SERVER -> CLIENT: 221 2.0.0 Service closing transmission channel
2020-06-05 10:02:58 Connection: closed
SMTP Error: Could not authenticate.