CyberHosting

Gmail POP3 POP Server issues.

Hello Team,

Question 1:

My Admin account is abc.com, and my Client account is xyz.com

I want my Client account to use the POP Server -> xyz.com (Port 995), but not successful, Gmail will be warning me below message

************************************************************
Unable to establish secure SSL connection to xyz.com[ Help ]
Server returned error: "SSL error: ok Hostname "xyz.com" doesn't match any SANs: "abc.com", "www.abc.com""
************************************************************

And I also tried to use non-SSL (Port 110), Gmail is also warning me
************************************************************
There was a problem while connecting to xyz.com
Server returned error: "SSL protocol error. Please try disabling SSL, or contact your other provider to verify the correct port settings."
************************************************************

May I know can I use my Client account (xyz.com) as the POP Server in Gmail?




Question 2:

Also, I found and tried that I must need to enable the CSF to use the Gmail POP3 function, if I disable CSF and use CyberPanel Firewall, the Google will not pass it. ?


Many thanks =)

Comments

  • This guide will help you set up email on Gmail

    https://blog.cyberpanel.net/2018/05/15/achieve-10-10-email-score-with-cyberpanel/

    Especially at the end, you will find the information you need but recommended to read full tutorial.
  • Hello, Nice to meet you!

    I followed your provided teaching and my current rDNS entry (IP address) is pointed to my Admin account (abc.com).

    But my current Client account (xyz.com) to use the POP Server -> xyz.com (Port 995), is also not successful, Gmail will be also warning me below message

    ************************************************************
    Unable to establish secure SSL connection to xyz.com[ Help ]
    Server returned error: "SSL error: ok Hostname "xyz.com" doesn't match any SANs: "abc.com", "www.abc.com""
    ************************************************************

    May I know is it not possible to use xyz.com as the POP Server?
    Or Can I disable the SSL, to let the Client to use non-SSL (Port 110)?

    Thanks for your support again! =)
  • When you configure POP on Gmail you can use abc.com as a POP server, before using this domain make sure to issue SSL for it https://cyberpanel.net/docs/2-ssl-for-postfix-dovecot/

    You can use abc.com to configure xyz.com too. So while adding email from xyz.com use abc.com for the POP server along with port 995
  • Understood, thank you so much for your support =)
  • Hi, i have problem with Gmail .
    My hostname (hostanme -f) : mail.domain.com
    my mail : [email protected]
    DNS MX : mail.domain.com

    i have 10/10 on mail-tester.com
    I create Let’s Encrypt SSL for MailServer (Postfix / Dovecot)

    now in gmail :
    POP mail.domain.com port 110 no SSL = „[AUTH] Plaintext authentication disallowed on non-secure (SSL/TLS) connections.”

    POP mail.domain.com port 110 with SSL = „SSL protocol error. Please try disabling SSL, or contact your other provider to verify the correct port settings.”

    POP mail.domain.com port 995 no SSL = "No route to host"

    POP mail.domain.com port 993 with SSL = „SSL error: ok Hostname "mail.domain.com" doesn't match any SANs: "domain.com"

    POP domain.com port 993 with SSL = „Missing +OK response upon connecting to the server: * OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ AUTH=PLAIN] Dovecot ready.”

    POP domain.com port 993 no SSL = „Connection timed out: There may be a problem with the settings you added. Please contact your other email provider to verify the correct server name and port.”

    in https://blog.cyberpanel.net/2018/05/15/achieve-10-10-email-score-with-cyberpanel/
    i found info : "Choose port 995."
    BUT only 25, 587, 465, 110, 143 and 993 is open on firewall .

    What should i do ?
    Change hostname to domain.com?
    Open 995 port?

    help me please.
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