cPanel Autodiscover, Exchange+POP

Geoff K

• March 17, 2015 17:16

So just what exactly is the recommended solution for people who wish to have domains that have hosted exchange/O365 for some accounts and cPanel managed POP for others? If I have the domain set to Auto, MX's pointing at cPanel (so that cPanel can forward exchange accounts to a hosting address) - cPanel pushes Autodiscover records to outlook via SRV/autodiscover.domain which breaks Outlook periodically - wiping all the RPC and Proxy details. If I have the domain set to Remote (as was suggested in multiple threads here and around the web), MX's pointing at cPanel (again so forwards can work) - cPanel refuses to accept mail. We are on shared reseller hosting at this time and have been advised that they "will not" turn off the cPanel autodiscover service because its server wide - and not per domain or per reseller. At least in the 11.48.x tree we can see the autodiscover records in the cPanel Zone file (rather than just the WHM one). What are we supposed to do? This has literally caused weeks of work/support calls since it (cPanel based Autodiscover) was enabled on our host.

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  cPanelMichael

  • March 18, 2015 16:00

  So just what exactly is the recommended solution for people who wish to have domains that have hosted exchange/O365 for some accounts and cPanel managed POP for others?

  
  Hello, Could you elaborate further on this configuration? For instance, are you attempting to have specific email accounts under the same domain name managed separately? Thank you.

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  Geoff K

  • March 19, 2015 01:09

  Say I have 10 email accounts under a domain. 6 of these guys are hosted exchange/o365 users. 4 of them are POP/IMAP mail users. Hosted Exchange/O365 handles itself so long as a mail forward is sent from the cPanel Domain -> Exchange. Exchange knows to send mail to the pop users it relays it out via MX records. The problem is cPanel's Autodiscovery. It points to cPanel - both autodiscover.domain.com and an SRV record pointing to cpanel. This breaks Outlook, as Outlook periodically checks for Autodiscover updates, which then overwrites the Hosted Exchange/O365 proxy settings. Our hosting provider has cPanel's Autodiscover service tweaks turned on - we don't even see the options - so the only option to stop the service propagating to clients is to Poison their DNS via hosts/custom dns zone (autodiscover.domain.com 127.0.0.1) Alternatively we can set cPanel to "remote" under MX Entry. this stops cPanel from auto-generating the autodiscover, autoconfig and SRV records - however cPanel will not accept mail for that domain - thus the pop accounts AND the exchange forwards don't work. Currently we are investigating a VPS to get around this mess - but we're looking at literally 3x price jump to do it - just to stop Autodiscover breaking ~60 Outlook clients incredibly regularly.

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  cPanelMichael

  • March 19, 2015 15:22

  Hello, The case referenced in the following thread should address this issue:

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