can i safely downgrade from El Capitan to Yosemite OS X

Hi Experts
I'm having a lot of problems after upgrade to El Capitan OS X especially in the outlook 2011
But I'm afraid the loss of emails Unfortunately, I use POP3 account
any idea
LVL 8
TemodyPickalbatros, IT ManagerAsked:
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Scott CSenior EngineerCommented:
You can't run the Yosemite installer within El Capitan, because the Mac always wants to have the latest version of OS X.

What you can do is erase the beta of El Capitan, re-install Yosemite, and then restore your original pre-El Capitan data from the Time Machine back up you made before you downloaded the beta.

Two articles that say the same thing.

http://www.macworld.co.uk/how-to/mac-software/delete-el-capitan-go-back-to-yosemite-3581872/

http://www.imore.com/how-downgrade-os-x-el-capitan-back-os-x-yosemite

Make sure you have backups of all of your data.
strungCommented:
Downgrading is a big job, as per those articles, because you have to backup, erase, reinstall Yosemite, then use migration assistant to get your data back.

Instead, maybe you could see if your provider can change you over to IMAP instead. POP3 is an obsolete protocol and you should not be using it if it can be avoided. IMAP supposedly works on Outlook 2011 in El Capitan.

Alternatively, you could switch to Mac Mail for your mail and make sure you set your POP3 setting to "leave on server".
TemodyPickalbatros, IT ManagerAuthor Commented:
@all thanks
@strung
do you mean if i switch to IMAP in all my account the outlook 2011 hangs should stop
strungCommented:
You can give it a try. The discussion groups seem to suggest no one is having trouble with Outlook 2011 and IMAP.

On the other hand, if you can switch to IMAP,  you could set it up on MacMail for the time being until MS gets Outlook sorted. Since IMAP keeps its mail stored on the mail server, you could then simply switch to Outlook from Mail (if you still want to) and all your mail would be automatically imported into Outlook.

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Justin BradshawOwnerCommented:
I second using IMAP and Mac Mail. POP (and Outlook both) is a world of hurt.
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