setting up

having trouble setting up – please can anyone advise on the error below:
Versions:
WordPress: 4.9.6
WordPress MS: No
PHP: 7.0.30
WP Mail SMTP: 1.2.5

Params:
Mailer: smtp
Constants: No
ErrorInfo: The following From address failed: contact@thetallcollective.com : MAIL FROM command failed,5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DM5PR04CA0057.namprd04.prod.outlook.com]
,530,SMTP server error: MAIL FROM command failed Detail: 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DM5PR04CA0057.namprd04.prod.outlook.com]
SMTP code: 530SMTP server error: MAIL FROM command failed Detail: 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DM5PR04CA0057.namprd04.prod.outlook.com]
SMTP code: 530
Host: smtp.office365.com
Port: 587
SMTPSecure: tls
SMTPAutoTLS: bool(true)
SMTPAuth: bool(false)

Server:
OpenSSL: Yes
SMTP Debug:
2018-06-15 20:53:27 Connection: opening to smtp.office365.com:587, timeout=300, options=array (
)
2018-06-15 20:53:27 Connection: opened
2018-06-15 20:53:27 SERVER -> CLIENT: 220 DM5PR04CA0057.outlook.office365.com Microsoft ESMTP MAIL Service ready at Fri, 15 Jun 2018 20:53:26 +0000
2018-06-15 20:53:27 CLIENT -> SERVER: EHLO thetallcollective.com
2018-06-15 20:53:27 SERVER -> CLIENT: 250-DM5PR04CA0057.outlook.office365.com Hello [67.222.39.89]
250-SIZE 157286400
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250 SMTPUTF8
2018-06-15 20:53:27 CLIENT -> SERVER: STARTTLS
2018-06-15 20:53:27 SERVER -> CLIENT: 220 2.0.0 SMTP server ready
2018-06-15 20:53:27 CLIENT -> SERVER: EHLO thetallcollective.com
2018-06-15 20:53:27 SERVER -> CLIENT: 250-DM5PR04CA0057.outlook.office365.com Hello [67.222.39.89]
250-SIZE 157286400
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-AUTH LOGIN XOAUTH2
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250 SMTPUTF8
2018-06-15 20:53:27 CLIENT -> SERVER: MAIL FROM:<contact@thetallcollective.com>
2018-06-15 20:53:32 SERVER -> CLIENT: 530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DM5PR04CA0057.namprd04.prod.outlook.com]
2018-06-15 20:53:32 SMTP ERROR: MAIL FROM command failed: 530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DM5PR04CA0057.namprd04.prod.outlook.com]
2018-06-15 20:53:32 The following From address failed: contact@thetallcollective.com : MAIL FROM command failed,5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DM5PR04CA0057.namprd04.prod.outlook.com]
,530,SMTP server error: MAIL FROM command failed Detail: 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DM5PR04CA0057.namprd04.prod.outlook.com]
SMTP code: 530