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Sender address rejected

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  • June 11, 2025 at 12:47 pm #345318
    info
    Participant

    When I try to send a test email to my followers, it doesn’t send and I get this message:
    Last test failed with error “The following From address failed: contact@nilecenter.edu.eg : MAIL FROM command failed, Sender address rejected: user not found. 1749638328-kcDK6SN3LW20-axGZzAVU ,553,5.7.1 SMTP server error: MAIL FROM command failed Detail: Sender address rejected: user not found. 1749638328-kcDK6SN3LW20-axGZzAVU SMTP code: 553 Additional SMTP info: 5.7.1.”
    I want to change the email address sent to:
    info@nilecenter.edu.eg

    How can I do this, please?

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