I build wordpress website with aws lightsail hosting.

I bought my domain in GoDaddy and created custom email with the domain (info@myDomain.com) - myDomain is just for the explanation.

I'm trying to configure contact form and send emails to this email.

so what I did is installed WP Mail SMTP and configure the settings. into settings what I set is

then in SMTP Host I added

I saved the settings and send email test - I'm getting the error

There was a problem while sending the test email.

Versions:
WordPress: 5.8.2
WordPress MS: No
PHP: 7.4.25
WP Mail SMTP: 3.2.1

Params:
Mailer: smtp
Constants: No
ErrorInfo: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Host: relay-hosting.secureserver.net
Port: 25
SMTPSecure: string(0) ""
SMTPAutoTLS: bool(false)
SMTPAuth: bool(false)

Server:
OpenSSL: OpenSSL 1.1.1d 10 Sep 2019

Debug:
Email Source: WP Mail SMTP
Mailer: Other SMTP
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

SMTP Debug:
2022-01-05 09:27:56 Connection: opening to relay-hosting.secureserver.net:25, timeout=300, options=array()

2022-01-05 09:28:27 Connection failed. Error #2: stream_socket_client(): unable to connect to relay-hosting.secureserver.net:25 (Connection timed out) [/opt/bitnami/wordpress/wp-includes/PHPMailer/SMTP.php line 388]

2022-01-05 09:28:27 SMTP ERROR: Failed to connect to server: Connection timed out (110)

SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

I tried more different smtp hosts:

1. smtpout.secureserver.net with port 465/587
2. 

   I talked with GoDaddy customer service for over then 3 hours- they didn't know how to help me. I read some tutorials such as:

   https://il.godaddy.com/en/help/send-form-mail-using-an-smtp-relay-server-953

   I still looking for any answer. how to configure the right SMTP with those services GoDaddy - wordpress - Aws Lightsail?

   CodePudding user response：

   From Remove port 25 restriction from your Lightsail instance:

   By default, AWS blocks outbound traffic on port 25 on all Lightsail instances. To send outbound traffic on port 25, request that this restriction be removed.

   You will need to request for the restriction to be removed.

   Alternatively, connect to an SMTP server via a different port (which is common when using TLS).

   CodePudding user response：

   As Lightsail blocks outbound traffic on port 25. tried port number 2525.