Yosemite - Mail.app memory leak

I'm seeing a recurring issue with Mail.app taking up huge amounts of RAM memory.  There's evidently a serious memory leak in Yosemite Mail.  On three occasions today, I noticed my free memory below 20 MB (I have 16GB).  Activity Monitor shows the culprit to be Mail.app taking any where from 20-65GB of memory!  I've had to quit Mail and restart it, only to have the same issue surface later.  Does anyone have a way to mitigate/resolve this issue?

I apologize this is not the Discussion that has all the solutions. It's this one:
Yosemite OS 10.10 Mail Memory Leak
There are 19 pages so far, I'll see if I can find my post with the suggestions. Found it, it was on page 7. Here ya go. Hope it works!
Doren_Sean_Michael
Oct 23, 2014 8:47 PM
Re: Yosemite OS 10.10 Mail Memory Leak
Re: Yosemite OS 10.10 Mail Memory Leak
in response to Doug Lerner2
Thanks mlwebber & etresoft. I think we were able to narrow down the 4 most effective methods of temporarily resolving this issue it seems. I only had to disable the drafts to get back to normal, but others are reporting that using that in conjunction with a combination of 3 of the other methods from mlwebber are resolving their issues. Albeit this is only a temp fix until Apple updates their software & truly fixes this bug/issue, but, at least, I hope, we all can get back to business as normal for the time being.
Doren (from etresoft’s observations):
- Preferences/Accounts/Mailbox Behaviors: UNCHECK “Store draft messages on the server”
mlwebber:
- Preferences/Accounts/Advanced: UNCHECK “Use IDLE command if the server supports it”
- Preferences/General/Check for new messages: “Every 5 minutes”
- Preferences/Junk Mail: UNCHECK “Enable junk mail filtering”
Please post in this discussion if none of these methods help you and we'll see what we can do. We'd also love to know if these methods also resolve your issue. Thank you.

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        MacBook Pro (Retina, 15-inch, Mid 2014) (Technical Specifications)
        MacBook Pro - model: MacBookPro11,3
        1 2.5 GHz Intel Core i7 CPU: 4-core
        16 GB RAM Not upgradeable
            BANK 0/DIMM0
                8 GB DDR3 1600 MHz ok
            BANK 1/DIMM0
                8 GB DDR3 1600 MHz ok
        Bluetooth: Good - Handoff/Airdrop2 supported
        Wireless:  en0: 802.11 a/b/g/n/ac
        Battery Health: Normal - Cycle count 16
    Video Information: ℹ️
        Intel Iris Pro
            Color LCD spdisplays_2880x1800Retina
        NVIDIA GeForce GT 750M - VRAM: 2048 MB
    System Software: ℹ️
        OS X 10.10.2 (14C109) - Time since boot: 1:1:19
    Disk Information: ℹ️
        APPLE SSD SM0512F disk0 : (500.28 GB)
            EFI (disk0s1) <not mounted> : 210 MB
            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
            Macintosh HD (disk1) / : 499.05 GB (413.24 GB free)
                Core Storage: disk0s2 499.42 GB Online
    USB Information: ℹ️
        Apple Internal Memory Card Reader
        Asmedia ASM107x
            Asmedia ASM107x
        Apple Inc. Apple Internal Keyboard / Trackpad
        Apple Inc. BRCM20702 Hub
            Apple Inc. Bluetooth USB Host Controller
        Asmedia ASM107x
            Asmedia ASM107x
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                Apple, Inc. Keyboard Hub
                    Apple, Inc Apple Keyboard
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        Apple Inc. thunderbolt_bus
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        /etc/hosts - Count: 2
    Gatekeeper: ℹ️
        Mac App Store and identified developers
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        SteerMouse  [Support]
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