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  • April 14, 2025 at 12:18 pm #343022
    nonstop
    Participant

    Recently, errors have been appearing when sending mailings in very large quantities. For example, today, out of 12,000 mails, there were 8,000 errors.
    Most of them with the message:

    SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/TroubleshootingSMTP server error: Failed to connect to server

    This has practically never happened before.

    April 15, 2025 at 9:37 am #343077
    Michael
    Keymaster

    Hello,

    as the error message suggest, there was a failure while connecting to your sending server. Please check this with your smtp hosting support team.

    Michael

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