Issue with configuring with application or gmail

Discussion in 'ISPConfig 3 Priority Support' started by pawan, Jan 30, 2019.

  1. pawan

    pawan Member HowtoForge Supporter

    I am getting error for other domains then the server domain
    stream_socket_enable_crypto () peer certificate cn did not match expected domain.
    How I can overcome this.
     
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    The SSL cert of the mail system contains the server hostname only. Use the server hostname to connect to the mail system and not other domains.
     
  3. pawan

    pawan Member HowtoForge Supporter

    Hi Till,
    so you mean if the domain is nexgensbp.com, I will not use host as mail.nexgensbp.com but mail.mywebsolutions.co.in.
    if yes, is there no way I can use nexgensbp.com as while providing the mail details to the customer, it will look bit odd.
     
  4. till

    till Super Moderator Staff Member ISPConfig Developer

    It is common that clients use the mail server name of the provider. If you would want your users to be able to use their own domain names, then you will have to create a ssl cert which contains all mail related subdomains of all clients in one ssl cert and then use that cert for the mail system. But you must be aware that Let's encrypt has a limit of 100 domains inside a single cert, so you can host max. 99 customers + your server hostname on that server then, before you reach the limit.
     
  5. pawan

    pawan Member HowtoForge Supporter

    Hi Till,
    Thanks for the info.
    I think for not all clients I need to provide the mail host details, where I can use my server name,
    for the rest I would like to create and include single cert and add other domains as needed.
    is that possible, how I can achieve that?
     

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