mandrill smtp failing

Hi
I’m exploring alternative smtp plugings as the wpmandrill one is not being updated to support php7 and will not send mail with attachments. I installed yours and configured it with settings from Mandrill but am getting these errors:
Versions:
WordPress: 4.9.4
WordPress MS: No
PHP: 7.0.27
WP Mail SMTP: 1.2.5

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

Server:
OpenSSL: Yes
Apache.mod_security: No
SMTP Debug:
2018-02-07 17:05:52 Connection: opening to smtp.mandrillapp.com:587, timeout=300, options=array (
)
2018-02-07 17:05:52 Connection: opened
2018-02-07 17:05:52 SERVER -> CLIENT: 220 smtp.mandrillapp.com ESMTP
2018-02-07 17:05:52 CLIENT -> SERVER: EHLO www.shop.alohabids.com
2018-02-07 17:05:52 SERVER -> CLIENT: 250-relay-2.us-east-1.relay-prod
250-PIPELINING
250-SIZE 26214400
250-STARTTLS
250-AUTH PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250 8BITMIME
2018-02-07 17:05:52 CLIENT -> SERVER: STARTTLS
2018-02-07 17:05:52 SERVER -> CLIENT: 220 2.0.0 Ready to start TLS
2018-02-07 17:05:52 CLIENT -> SERVER: EHLO www.shop.alohabids.com
2018-02-07 17:05:52 SERVER -> CLIENT: 250-relay-2.us-east-1.relay-prod
250-PIPELINING
250-SIZE 26214400
250-AUTH PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250 8BITMIME
2018-02-07 17:05:52 CLIENT -> SERVER: AUTH LOGIN
2018-02-07 17:05:52 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2018-02-07 17:05:52 CLIENT -> SERVER: YnVybnN0dWZm
2018-02-07 17:05:52 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2018-02-07 17:05:52 CLIENT -> SERVER: YmNLVnRRal9SR1piMElmdjdqZzg3UQ==
2018-02-07 17:05:54 SERVER -> CLIENT: 435 4.7.8 Error: authentication failed: UGFzc3dvcmQ6
2018-02-07 17:05:54 SMTP ERROR: Password command failed: 435 4.7.8 Error: authentication failed: UGFzc3dvcmQ6
2018-02-07 17:05:54 SMTP Error: Could not authenticate.
2018-02-07 17:05:54 CLIENT -> SERVER: QUIT
2018-02-07 17:05:54 SERVER -> CLIENT: 221 2.0.0 Bye
2018-02-07 17:05:54 Connection: closed
2018-02-07 17:05:54 SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

I tried the mandrill plugin and it sends no problem. I also tried another smtp plugin and got similar errors to this one. Are you able to see the issue I’m having from this debug info? Please let me know if so. I would be able to start using your plugin and services.
Thank you,
John