Lag in Typing in Yosemite's Mail w/ External Apple Keyboard

MacNN News folks responded to my email with the following summary:

http://www.macnn.com/articles/14/12/12/apple.support.community.members.exhaustiv e.testing.rules.out.1password.as.cause/

This can only help other users with the issue in Yosemite Mail find this thread and hopefully bring it to Apple's attention via the "Genius" Bar, AppleCare, feedback or bug reporting forms (links above).

Kirk out

been playing with Postbox (an alternative email app). no lag at all (so far anyway). def seems to be apple mail, and my default user account. hope someone figures this out (i may just switch to postbox, at least until the issue's resolved).

very similar to apple mail, so an easy transition...

Okay, this is totally weird. Today, this morning, I was maniacally typing a long email and suddenly noticed it was NOT happening! ***?!! I don't have time to isolate what might have been different, but I'm wondering whether or not Apple made some changes on the backend? Totally weird! We'll see if it sticks.

LOL! Apple just censored my 3 initials for What The Frack?! Hahahahaha.

Another note on Mac NN says that Apple's seeded another beta of 10.10.2 "One significant change is that Mail and VoiceOver have been added as new areas for testing focus..."

If Apple had made some changes 'on the backend', I would be quite concerned about the cause of this issue but also, if they have, I don't see any change; I still have a delay.

"changes on the backend" would imply the issue is only happening for people using Apple/iCloud server mail accounts. I don't believe this is the case - my main mail accounts are hosted by Kerio Connect and Gmail and I'm still seeing the issue this morning as well.

Kirk out

I, too, still have the problem. It doesn't seem as pronounced or consistent as it once was, but it most definitely still exists.

my email is with hypermart. i DID have the problem with my (generally unused) icloud email.

the lag happens ONLY in apple mail (not when i tried Postbox).

it does NOT seem to happen in a test user account, so ONLY in my main account.

it started for me a week ago, out of nowhere; no updates installed; nothing changed in my setup (that i'm aware of).

does NOT happen for my GF (who's NOT on yosemite).

def mysterious...

@Alf & Kirk. Not true. If this is about Mail saving or spell checking or anything that requires some communication protocol with any server, not just Apple's, they "could" in theory have changed something in their network settings. It could be an IMAP protocol that happening with any and all mail accounts. Safari is almost always open on my laptop where I'm having the problem and it could even be some bug about how Mail talks to Safari.

Truth is that I don't know and none of us do at this juncture. I'd just like to know why all of a sudden I was able to type 800+ words today in an email without the delay with all things being the same. Maybe the bug takes Sunday's off?

I just read this whole thread. I have a three-year-old 11-inch MacBook Air and an early 2009 iMac, both running Yosemite 10.10.1, The lag in typing showed up in both machines shortly after the upgrade. I did switch to Helvetica Neue for Mail—Helvetica wouldn't validate, anyway. But the lag remained. I turned just about everything on and off in Mail prefs, but the lag remained.

Then I tried switching the check spelling setting from "as I type" to "when I click Send." BINGO. At least for now, for me. I switched it back and forth three times just now and tested: I had the lag in "as I type" mode but not in "when I click Send." And I just composed and sent an email without thinking about the lag, just like in the good old days, and everything was fine. For now.

just tried that ('check spelling when i send") and...no difference. lag is still there (and still erratic). 😟

I've witnessed this on my fully updated MacBook Pro (Retina, Mid 2012) as well, but haven't seen it in a while. Perhaps it disappeared when I turned off LCD font smoothing in System Preferences > General.

Hi All,

After chatting with our developers here the best thing we can do to help here is to make sure we get a properly filed rdar.

Has anyone filed one yet? If so, what's he rdar # and if not, can someone quickly summarize the issue with everything that has been tested, os x versions, Mail.app version, any troubleshooting, any log files that are present and possibly relevant?

If we do that I'll file a rdar and post the rdar number here, along with an openradar (http://www.openradar.me/page/1). This would allow anyone to duplicate the report, more duplicates mean more eyes and more eyes mean a possible fix sooner. The key is to make sure we give them as much information as we can and that's what I'll be happy to work with you all on.

Kyle