SMTP connect() failed

Hi There

What it is I have gravity forms on my website where people can send enquiries from.

I also have the WP Mail SMTP plugin where I have all my credentials setup and these should go to Gmail accounts. I currently have:
SMTP Host: smtp.gmail.com
SMTP Port: 465

(I have also tried it in TLS)

I am also using SSL and we have our own server which is maintained by our IT department. This has all been checked for any other problems that can cause this but they tested it through powershell and I received a test email fine.

If I try and send a test email via this plugin I then receive the below errors:

The result was:
bool(false)
The full debugging output is shown below:
PHPMailer Object
(
[Version] => 5.2.22
[Priority] =>
[CharSet] => UTF-8
[ContentType] => text/plain
[Encoding] => 7bit
[ErrorInfo] => SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
[From] => [email protected]
[FromName] => Coleg Cambria
[Sender] =>
[ReturnPath] =>
[Subject] => WP Mail SMTP: Test mail to [email protected]
[Body] => This is a test email generated by the WP Mail SMTP WordPress plugin.
[AltBody] =>
[Ical] =>
[MIMEBody:protected] => This is a test email generated by the WP Mail SMTP WordPress plugin.

[MIMEHeader:protected] => Date: Thu, 23 Nov 2017 12:15:29 +0000
To: [email protected]
From: Coleg Cambria
Subject: WP Mail SMTP: Test mail to [email protected]
Message-ID: <[email protected]>
X-Mailer: PHPMailer 5.2.22 (https://github.com/PHPMailer/PHPMailer)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8

[mailHeader:protected] =>
[WordWrap] => 0
[Mailer] => smtp
[Sendmail] => /usr/sbin/sendmail
[UseSendmailOptions] => 1
[PluginDir] =>
[ConfirmReadingTo] =>
[Hostname] =>
[MessageID] =>
[MessageDate] => Thu, 23 Nov 2017 12:15:29 +0000
[Host] => smtp.gmail.com
[Port] => 465
[Helo] =>
[SMTPSecure] => ssl
[SMTPAutoTLS] => 1
[SMTPAuth] => 1
[SMTPOptions] => Array
(
)

[Username] => [email protected]
[Password] => aqUXUjgEcP^Xr$90
[AuthType] =>
[Realm] =>
[Workstation] =>
[Timeout] => 300
[SMTPDebug] => 0
[Debugoutput] => echo
[SMTPKeepAlive] =>
[SingleTo] =>
[SingleToArray] => Array
(
)

[do_verp] =>
[AllowEmpty] =>
[LE] =>

[DKIM_selector] =>
[DKIM_identity] =>
[DKIM_passphrase] =>
[DKIM_domain] =>
[DKIM_private] =>
[DKIM_private_string] =>
[action_function] =>
[XMailer] =>
[smtp:protected] => SMTP Object
(
[Version] => 5.2.22
[SMTP_PORT] => 25
[CRLF] =>

[do_debug] => 0
[Debugoutput] => echo
[do_verp] =>
[Timeout] => 300
[Timelimit] => 300
[smtp_transaction_id_patterns:protected] => Array
(
[exim] => /[0-9]{3} OK id=(.*)/
[sendmail] => /[0-9]{3} 2.0.0 (.*) Message/
[postfix] => /[0-9]{3} 2.0.0 Ok: queued as (.*)/
)

[smtp_conn:protected] =>
[error:protected] => Array
(
[error] =>
[detail] =>
[smtp_code] =>
[smtp_code_ex] =>
)

[helo_rply:protected] =>
[server_caps:protected] =>
[last_reply:protected] =>
)

[to:protected] => Array
(
[0] => Array
(
[0] => [email protected]
[1] =>
)

)

[cc:protected] => Array
(
)

[bcc:protected] => Array
(
)

[ReplyTo:protected] => Array
(
)

[all_recipients:protected] => Array
(
[[email protected]] => 1
)

[RecipientsQueue:protected] => Array
(
)

[ReplyToQueue:protected] => Array
(
)

[attachment:protected] => Array
(
)

[CustomHeader:protected] => Array
(
)

[lastMessageID:protected] => <[email protected]>
[message_type:protected] => plain
[boundary:protected] => Array
(
[1] => b1_26d4900f25f1606c1cba7064e7428553
[2] => b2_26d4900f25f1606c1cba7064e7428553
[3] => b3_26d4900f25f1606c1cba7064e7428553
)

[language:protected] => Array
(
[authenticate] => SMTP Error: Could not authenticate.
[connect_host] => SMTP Error: Could not connect to SMTP host.
[data_not_accepted] => SMTP Error: data not accepted.
[empty_message] => Message body empty
[encoding] => Unknown encoding:
[execute] => Could not execute:
[file_access] => Could not access file:
[file_open] => File Error: Could not open file:
[from_failed] => The following From address failed:
[instantiate] => Could not instantiate mail function.
[invalid_address] => Invalid address:
[mailer_not_supported] => mailer is not supported.
[provide_address] => You must provide at least one recipient email address.
[recipients_failed] => SMTP Error: The following recipients failed:
[signing] => Signing Error:
[smtp_connect_failed] => SMTP connect() failed.
[smtp_error] => SMTP server error:
[variable_set] => Cannot set or reset variable:
[extension_missing] => Extension missing:
)

[error_count:protected] => 2
[sign_cert_file:protected] =>
[sign_key_file:protected] =>
[sign_extracerts_file:protected] =>
[sign_key_pass:protected] =>
[exceptions:protected] => 1
[uniqueid:protected] => 26d4900f25f1606c1cba7064e7428553
}

Please help?

Thanks

Rhys

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