WP Mail SMTP Failed to Send Email

  • Resolved projectone8

    (@projectone8)


    2 months, 1 week ago

    Everything was working up to when Godaddy migrated their managed hosting for WordPress is to an updated platform:

    Versions:
    WordPress: 6.8.2
    WordPress MS: No
    PHP: 8.2.29
    WP Mail SMTP: 4.6.0

    Params:
    Mailer: smtp
    Constants: No
    ErrorInfo: SMTP Error: Could not connect to SMTP host. Failed to connect to serverSMTP server error: Failed to connect to server SMTP code: 110 Additional SMTP info: Connection timed out
    Host: mail.smtp2go.com
    Port: 2525
    SMTPSecure:string(0) ""
    SMTPAutoTLS:bool(true)
    SMTPAuth:bool(true)

    Server:
    OpenSSL: OpenSSL 3.0.17 1 Jul 2025

    Debug:
    Email Source: WP Mail SMTP Mailer: Other SMTP SMTP Error: Could not connect to SMTP host. Failed to connect to serverSMTP server error: Failed to connect to server SMTP code: 110 Additional SMTP info: Connection timed out

    SMTP Debug:
    2025-09-16 15:47:20 Connection: opening to mail.smtp2go.com:2525, timeout=30, options=array() 2025-09-16 15:47:50 Connection failed. Error #2: stream_socket_client(): Unable to connect to mail.smtp2go.com:2525 (Connection timed out) [/dom418951/wp-includes/PHPMailer/SMTP.php line 412] 2025-09-16 15:47:50 SMTP ERROR: Failed to connect to server: Connection timed out (110) 2025-09-16 15:47:50 SMTP Error: Could not connect to SMTP host. Failed to connect to server

Viewing 1 replies (of 1 total)
  • Plugin Support Patrick

    (@paddyam)

    2 months, 1 week ago

    Hi @projectone8,

    The error “SMTP Error: Could not connect to SMTP host” usually means an issue with your SMTP credentials or some error during the authentication process.

    It is critical to make sure you have the right credentials. When you get a chance, please double-check the password you’re using with the SMTP connection to be sure it’s correct.

    In case it helps, please check out our step-by-step guide on setting this up.

    Once confirmed, you can then test your server credentials in an isolated environment to discard/confirm any issues local to your site. A tool like this one would do the job.

    If this doesn’t resolve the issue, you canto contact your email hosting provider and share the error message with them, as it has to do with authentication on their server.

    Also, I noticed that you’re connecting to the SMTP2GO mailer and with that I’d recommend setting this up through out SMTP2GO integration.

    I hope this helps.

    • This reply was modified 2 months, 1 week ago by Patrick.
Viewing 1 replies (of 1 total)

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