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Environment details?
Version of osTicket?
error you are getting?

All of our users have . in their usernames and we have not had any issues for our 500+ user accounts.

    Hello ntozier
    Thank you and very sorry for unclear info I put here.

    I attached 2 screenshots which I believe it will tell you the details of my os installation.

    Please let me know if you need more info.

    I appreciate your help and the fix of the issue im facing with my osticket.

    Thank you

      Is that actually a valid email address?
      Maybe gmal.com does not have a MX record in its dns?
      Maybe your DNS isn't working on the server?

      You can go to: Admin panel -> Emails -> Settings, and disable "Verify Email Address".
      This checks for a MX record for the domain that you are entering.

        The email is from incoming ticket via web form.
        Unfortunately the sender as wordpress@domain.tld and also the reply to.
        So I have to add the real sender as collabolator to get my reply sent to him.

        Now I have deactivate that verify Email address and it worked.
        I will reactivate it.

        Thank you for your help.
        Now the next question (if its ok)... the verify email address has info which if i hover it shows nothing, what is it?

        Thank you again.

        Thank you ntozier
        My Bad, I just aware that it is gmal not gmail.
        once again, thank you

          So are you all set then? And should I close this thread?

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