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LMTP error User doesn't exist

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21 comments

  • Chrisenglish
    Fresh installed Alma and cPanel again, same issue;
    ent: failure
    User: -remote-
    Domain:
    From Address: 14517-1828-953-4828-chris=hostname.com@mail.lastrelif.beauty
    Sender:
    Sent Time: Mar 1, 2023, 2:10:14 PM
    Sender Host: dayton.lastrelif.beauty
    Sender IP: 185.176.220.138
    Authentication: localdelivery
    Spam Score: 13.4
    Recipient: chris@hostname.com
    Delivery User: chris
    Delivery Domain: hostname.com
    Delivered To:
    Router: localuser
    Transport: dovecot_delivery
    Out Time: Mar 1, 2023, 2:10:14 PM
    ID: 1pXNA7-000J7K-1a
    Delivery Host:
    Delivery IP:
    Size: 7.88 KB
    Result: LMTP error after RCPT TO:: 550 5.1.1 User doesn't exist: chris@server.hostname.com
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  • Chrisenglish
    It is trying to deliver the mail to USERNAME@SERVER HOSTNAME and gives an error that the user doesnt exist
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  • cPRex Jurassic Moderator
    Hey there! Can you let me know what specifically is triggering that failure message, and where you're getting those? Once I know that I can likely provide you with better details.
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  • Chrisenglish
    Hey there! Can you let me know what specifically is triggering that failure message, and where you're getting those? Once I know that I can likely provide you with better details.

    Hey! Thanks for the reply! I have installed AlmaLinux as a fresh OS, and installed cPanel however when sending myself an email from another server (in this instance, gmail) I get the error that the user is not found however for example my domain is EarthWorm.com and my hostname is server.EarthWorm.com it says chris@server.earthworm.com doesnt exist. I have just installed centOS and i am trying to see if this is replicated. However, I did install AlmaLinux 3 times and had the same issue each time weirdly!
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  • cPRex Jurassic Moderator
    Just to confirm, you're sending the message from the new cPanel server(s) to an external account, correct? Are both email addresses uses the same earthworm domain?
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  • Chrisenglish
    Having the same issue on CentOS
    LMTP error after RCPT TO:: 550 5.1.1 User doesn't exist: chris@server.domain.net
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  • Chrisenglish
    Just to confirm, you're sending the message from the new cPanel server(s) to an external account, correct? Are both email addresses uses the same earthworm domain?

    I am sending an email from a gmail, to my new cpanel server. However this happens for every email that my domain receives.
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  • cPRex Jurassic Moderator
    I currently don't see any MX records in place, which is what is used to handle email, for the earthworm.com domain. Without those records in the DNS, you won't be able to receive email.
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  • Chrisenglish
    I currently don't see any MX records in place, which is what is used to handle email, for the earthworm.com domain. Without those records in the DNS, you won't be able to receive email.

    I used that domain as an example however my domain does have MX Records and the server is rejecting the mail saying "User doesn't exist".
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  • cPRex Jurassic Moderator
    Ah, I wasn't sure if that was an example domain or not. If the cPanel license is purchased through us, it's time to create a ticket so we can examine the system and see what the issue may be.
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  • Chrisenglish
    Ah, I wasn't sure if that was an example domain or not. If the cPanel license is purchased through us, it's time to create a ticket so we can examine the system and see what the issue may be.

    I am currently using trial licence, I am unsure if I can still make this ticket?
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  • cPRex Jurassic Moderator
    You totally can - we want to make sure you have a great experience, and you'll need to get this resolved, so we'll be happy to take a look!
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  • Chrisenglish
    You totally can - we want to make sure you have a great experience, and you'll need to get this resolved, so we'll be happy to take a look!

    I will open a ticket now!
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  • cPRex Jurassic Moderator
    Once that is done, please post the number here so I can follow along.
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  • Chrisenglish
    Once that is done, please post the number here so I can follow along.

    I have tried to reinstall AlmaLinux because ultimately thats what I want to be using however, I now get this error; The cPanel license server replied that the license has been activated on too many machines (600). Please contact billing@cpanel.net The exact message was: The license has been activated too many times on different machines. (********)
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  • Chrisenglish
    Once that is done, please post the number here so I can follow along.

    94537023 ticket id for now, I need to sort the licence first.
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  • cPRex Jurassic Moderator
    Yes, if you perform too many reinstalls our license system will detect that as potentially fraudulent activity and lock the license. I see our Customer Service team was able to get that sorted out, so let me know if you're able to submit another ticket for the main issue.
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  • planetjoin
    Yes, if you perform too many reinstalls our license system will detect that as potentially fraudulent activity and lock the license. I see our Customer Service team was able to get that sorted out, so let me know if you're able to submit another ticket for the main issue.

    I"m having the same issue. I tried with a trial license and tried to install cpanel under Almalinux several times without success (I had always an error). Finally from the datacenter apparently installed all fine, but now the license is locked. I"ve leave a ticket more of 1 hour ago.. and nobody answered yet and do something SIMPLE. My ticketID is #95099965 Guys,, you are selling the more expensive panel in the market (excessive price, more expensive than many dedicated servers and increasing the insane cost of your panel continuosly) and your support speed is very very very poor. I need to migrate many sites from one datacenter to this one and I"m stopped waiting someone unlock the license. Come on!!! can you be a little bit faster ??
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  • cPRex Jurassic Moderator
    @planetjoin - the ticket was submitted at 3:53 and resolved at 5:24, which is exactly 1.5 hours during the overnight shift. That seems like a reasonable time frame to me. I also don't see that the cPanel license was purchased through us, so questions about the license should be directed to your hosting provider, Hetzner.
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  • planetjoin
    @planetjoin - the ticket was submitted at 3:53 and resolved at 5:24, which is exactly 1.5 hours during the overnight shift. That seems like a reasonable time frame to me. I also don't see that the cPanel license was purchased through us, so questions about the license should be directed to your hosting provider, Hetzner.

    Thanks for your answer. i though was during working hours..(from 6 AM to 6 PM, Central Time, and the ticket was sent at 9:00 AM CT).. but THANKS. Regarding the other thing you said.. From Hetzner answered me yesterday : "Dear Fabian, this is an issue that only cPanel itself can fix. That's why you need to contact: billing@cpanel.net in this case and ask for a solution. We cannot handle these cases unfortunately. It seems your IP needs to get whitelisted again." THanks Fabian
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  • cPRex Jurassic Moderator
    As a license provider, they shouldn't be placing issues with the license on you, the customer, but they should be reaching out to us directly to get those fixed.
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