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Possible to use Hostname as MX Server?

Discussion in 'Security' started by yagami_kira, Mar 25, 2017.

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  1. yagami_kira

    yagami_kira Member

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    I have a VPS server using WHM/cPanel.

    It has a registered hostname with free cpanel-signed hostname. But I don't use AutoSSL, nor do I have SSL certificates.

    In my Cloudflare DNS records (I'm not using cloudflare cdn features, only DNS), I have the MX record set to mail.mydomain.com. If I check the TLS through checktls.com, there's a warning there that says:

    "Cert Hostname DOES NOT VERIFY (mail.mydomain.com != hostname.mydomain.com)"

    I'm worried that this error may cause my emails to recipients (whether they use Yahoo, Gmail, Hotmail, etc.) to go their Spam/Junk folder.

    Therefore, may I ask if it is possible to change the MX record to the hostname ? Therefore, my MX record server will become hostname.mydomain.com instead of mail.mydomain.com. Or will doing this cause mailing problems?
     
    #1 yagami_kira, Mar 25, 2017
  2. SysSachin

    SysSachin Well-Known Member

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    Twitter:
    Hi,
    There is no issue to use hostname as MX record instead of mail.mydomain.com.
    You have to check server hostname using folowing command and use it.
    Code:
    hostname
     
    #2 SysSachin, Mar 25, 2017
  3. yagami_kira

    yagami_kira Member

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    Thanks. Will changing the MX record to hostname cause any downtime since I believe this needs to be propagated for 3 days ?
     
    #3 yagami_kira, Mar 25, 2017
  4. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    Downtime should be minimal because the old record should still work until the DNS propagates to the new record.

    Thank you.
     
    #4 cPanelMichael, Mar 27, 2017
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