Sending mail very slow

Besides the notebook described below in the signature I have a MacBook right next to it. On both, the same three email accounts are configured exactly the same. One account is the IMAP MobileMe (aka .mac) account. The other two are POP accounts, for one of which I have a digital certificate. When I send mail through that account, it can take up a minute before the "busy" icon next to the Sent mailbox for the account disappears and the "whoosh" sound is heard. On the MacBook, the same mail is sent almost instantly. The digital certificate is in a password-protected part of my keychain, so on both notebooks I am prompted -- with almost no delay between pressing the Send button and receiving the prompt -- for that password before the actual send operation begins.
By the way, both notebooks are connected wirelessly to the same Apple AirPort Extreme, so I suspect that the problem is unrelated to the network infrastructure.

Hello Niken:
I fixed a similar problem by using OpenDNS.
http://www.opendns.com/
I think the problem might have been with my ISP, but using open DNS solved the slow mail transmission on both of my macs.
Barry

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Sending mail very slow after 10.9.5 upgrade.

I upgraded to 10.9.5 yesterday and ever since then, sending mail (using Mail.app) is very, very slow or the emails do not get sent and stay stuck in my Outbox.
Is anyone else experiencing this?
I've deleted my iCloud account and re-added it and it didn't help.

Troubleshooting sending and receiving email messages
Troubleshooting sending email messages

Send Mail Very Slow

When sending an email, it takes several minutes to send when using iCloud.
When I send from a different server it sends right away. What would be the problem.

I guess I'll cross-post this here, too:
Same deal here. Sending any mail from my Mac for the last week or so—the activity window will show it is connecting to p03-smtp.mail.me.com. This will take up to two minutes or longer before the mail message will send, as described.
I've done the ol' iCloud account reset/signing out and in/re-adding of the account, but that didn't work. This happened in the past, too, for a day or two, and just miraculously went back to its normal behavior.
Did somebody trip over a cord at p03-smtp-mail.me.com?

Mac mail very slow

Mac Mail is suddenly sending mail very slowly. After hitting send, it takes as much as 2 minutes to send. Any solutions??

Please follow these directions to delete the Mail "sandbox" folder.
Back up all data.
Quit Mail.
Triple-click the line below to select it:
~/Library/Containers/com.apple.mail
Right-click or control-click the highlighted line and select
Services > Reveal
from the contextual menu. A Finder window should open with a folder named "com.apple.mail" selected. If it does, move the selected folder — not just its contents — to the Desktop. Leave the Finder window open for now.
Relaunch Mail and test. If the problem is resolved, you'll have to recreate some of your Mail settings. You can then delete the folder you moved and close the Finder window. If you still have the problem, quit Mail again and put the folder back where it was, overwriting the one that may have been created in its place. Post your results.
Caution: If you change any of the contents of the sandbox, but leave the folder itself in place, Mail may crash or not launch at all. Deleting the whole sandbox will cause it to be rebuilt automatically.

Mac Mail very slow when waking

Hello
Mac Mail is very slow on my machine, just stalls and gives me the spinning wheel for several minutes. Usually it is when the machine has woken up; it appears that it is trying to do background tasks (like fetching mail) while this is going on but I am unable to switch to Mail for quite a long time. I sometimes see notifications of new mail in this period, equally it sometimes shows in Activity Monitor as "not responding" (although if I wait it eventually comes back).
It is runnning on a brand new MBP retina, lots of RAM, disk and processor available.
It collects mail from four mailboxes, three of them are Exchange and one is IMAP. None are massively high volume, kind of normal to low usage for the average person I guess. I did rebuild the database a while ago, but it just lost lots of mail which then needed to be slowly re-downloaded. I gave up on Outlook (on my previous machine) for being generally crashy, dysfuctional and annoying but now Mail isn't far behind.
Contacts, which I just leave open in the background quite often, also seems to be having trouble staying alive. Often "not responding" and requires a forced quit.
Any suggestions?
Dominic

Please follow these directions to delete the Mail "sandbox" folder.
Back up all data.
Quit Mail.
Triple-click the line below to select it:
~/Library/Containers/com.apple.mail
Right-click or control-click the highlighted line and select
Services ▹ Reveal
from the contextual menu. A Finder window should open with a folder named "com.apple.mail" selected. If it does, move the selected folder — not just its contents — to the Desktop. Leave the Finder window open for now.
Relaunch Mail and test. If the problem is resolved, you'll have to recreate some of your Mail settings. You can then delete the folder you moved and close the Finder window. If you still have the problem, quit Mail again and put the folder back where it was, overwriting the one that may have been created in its place. Post your results.
Caution: If you change any of the contents of the sandbox, but leave the folder itself in place, Mail may crash or not launch at all. Deleting the whole sandbox will cause it to be rebuilt automatically.

Mac Mail Very Slow (Spinning ball)

Hi -
My Mac Mail has gotten very very slow lately when first opening the app, or returning to the app after a long rest.
The ball starts spinning and it takes about 2-3 mins before I can use mail.
My mail database is very very large. 20GB, so I assume that is part of the problem. I did rebuild but that didn't seem to help.
Any ideas on how I can handle that, other than dumping my archive?

Please follow these directions to delete the Mail "sandbox" folder.
Back up all data.
Quit Mail.
Triple-click the line below to select it:
~/Library/Containers/com.apple.mail
Right-click or control-click the highlighted line and select
Services > Reveal
from the contextual menu. A Finder window should open with a folder named "com.apple.mail" selected. If it does, move the selected folder — not just its contents — to the Desktop. Leave the Finder window open for now.
Relaunch Mail and test. If the problem is resolved, you'll have to recreate some of your Mail settings. You can then delete the folder you moved and close the Finder window. If you still have the problem, quit Mail again and put the folder back where it was, overwriting the one that may have been created in its place. Post your results.
Caution: If you change any of the contents of the sandbox, but leave the folder itself in place, Mail may crash or not launch at all. Deleting the whole sandbox will cause it to be rebuilt automatically.

Exchange mail very slow on OS X yosemite

Often when a system update comes out, Mail is the culprit in each release. This release is no exception. I updated to OS X Yosemite and accessing my emails through Mail is painful if not nearly impossible. Exchange connects without error and syncs up all services without a problem - except Mail which is constantly pushing requests to Fetch information from the server, constantly syncing. As a result it means I can't read my email let alone reply to them.
I removed my exchange account and delete my Mail cache and local folders, readded the account, but still no joy.
IS anyone else have issues with this or simply me ?

I have a similar problem. Mail is very slow performing actions on Exchange server such as deleting mail, fetching mail. It is very slow even sowing the rainbow spinner often when performing an action. This is an upgrade from Mavericks on a Mac Mini (late 2012) with a 2.6GHz i7 quad core CPU. It is connected to an Exchange Server 2010. When I use connection doctor it takes a very long time to show a connected message.
I have tried deleting the account and re creating it but the problem persists.
The issue does not exist on Airmail 2 connected to the same Exchange Server on the same computer nor does it happen on an MacBook Air 11 (mid 2012) where the Yosemite install is an upgrade from Yosemite Beta 6.
Any ideas how to fix this?

Mail App sending mail super slow.. ??

I am trying to send mail using my @me account and it sending super slow even for small text. as a test i just wrote test and sent and it was a couple minutes to send. Anyone else experiencing this problem?
I have restarted mail several times and restarted my macbook..
went to gmail to test and sent to my mac address and was instant. but all outgoings from mail app are like syrup
Any help would be greatly appreciated. Having a bit of a meltdown at the moment and would love my mac not to fail me at the worst time as well.....aarrggghh

An issue with DNS can arise when sending via the SMTP, and it will likely be different for different ISPs. To confirm this is the problem, please prepare two new messages for sending, before sending either of them. Then click to send the first one, and as soon as you hear the swoosh that it has gone out, click to send the second one. If the second goes out almost instantaneously, then it is correctable with a change in DNS.
Two citations, different approaches, but really both addressing DNS:
http://discussions.apple.com/thread.jspa?messageID=9641256&#9641256
and
http://discussions.apple.com/thread.jspa?messageID=8974547&#8974547
This happened for many people with the beginning of Mail 3 in Leopard, but some may only experience in Snow Leopard and Mail 4.x.
Two recent experiences people had can be found at:
http://discussions.apple.com/thread.jspa?messageID=11962726&#11962726
and
http://discussions.apple.com/message.jspa?messageID=12099641#12099641
I am not sure how to advise you in New Zealand, but your ISP should be able to provide you with explicit DNS addresses to enter. This not impact webmail sending, btw.
Keep us posted.
Ernie

I am having trouble with yahoo mail, very slow to send never used to be this way started before iOs5 update

I am having trouble with mail, yahoo has started to have a problem sending, slow or not at all started before latest update, help

I noticed this at one point and what I did, which worked, was to delete the mailbox from my iPad, then reinstall it. Give it a try and see if it helps you as well.

Mail very slow to send after install of 10.10.3

Composed mail now sits in the outbox grinding away long before it finally sends. This issue has been duplicated both on my MB air and iMac desktop,
Has anyone found a solution?

I had the same problem, plus new emails were coming into my inbox hours late.
I found the solution in different forum.
I did this and everything is working perfectly now.
1. Quit Mail
2. Move ~/Library/Containers/com.apple.mail to desktop
3. Log out
4. Log in
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Mail very slow in Mountain Lion

The upgrade to Mountain Lion went smoothly but Mail works really badly afterwards.
When sending an email, it takes a few minutes before the mail goes out. And that's with any size message.
Auto-completion of mail addresses while composing takes multiple minutes. Even after it finally comes up with a list of email addresses, pressing enter on one also takes minutes to acknowledge
At various times, hitting the mail icon on the dock has no effect. The same is true with Command+TAB
Overall, the unresponsiveness is painful and making me wish I hadn't upgraded

This didn't solve my problem. First of all:
     $ ls /Library/Preferences/com.apple.mail.plist
     ls: /Library/Preferences/com.apple.mail.plist: No such file or directory
but I do have the file in my local Library:
     $ pwd
     /Users/spate/Library/Containers/com.apple.mail/Data/Library/Preferences
     $ ls -l *mail*
     lrwxr-xr-x 1 spate spate     64 Jul 26 11:08 com.apple.mail.LSSharedFileList.plist@ ->      ../../../../../Preferences/com.apple.mail.LSSharedFileList.plist
     -rw------- 1 spate spate   6733 Jul 27 08:24 com.apple.mail.plist
     -rw------- 1 spate spate 56130 Jul 27 08:12 com.apple.mail.plist.bak
This is after I moved com.apple.mail.plist to com.apple.mail.plist.bak and then started Mail again. As you can see, it created a new, much smaller com.apple.mail.plist
No luck - just as painfully slow as before!
This is horribly painful!

Why does my phone send iMessage very slow?

Upgraded to the iPhone 6 about a 2 weeks ago. Just recently i started to notice that roughly once or twice a day I am being forced to restart my phone because the message app is running ridiculously slow.
Essentially when the event happens I'm about to send a group message via iMessage and the loading bar at the top will go across the screen and stop around the 80% mark. It will stay there for about 3-5 minutes before sending the message. Keep in mind that this happens on AND off wi-fi.
I never had any issues like this before on my 4s which used the IOS 7. The new phone is updated to IOS 8.1.2.
Any ideas why this is happening? Is it a carrier issue? Phone software issue?
Any input would be appreciated.
Thanks!

My daughter is having the same problem, and it started happening very recently. There are only two things she's done recently that I know of that might have triggered this.
1) She cleaned up a lot of space on her phone, including a bunch of Messages. (You'd think this would help.)
2) She upgraded to iOS 8.3
It's frustrating her to death (teenager that can't text!).

Outgoing mail very slow

When I send an email. The wheel spins for quite awhile before the message leaves. This is a relatively new problem. I'm not sure if it started when I installed 10.5

MAC Mail, for some reason, wants a DNS server setting in the network setup.
Under System Preferences, go to Network and add your DNS numbers for your ISP Server. Get the right numbers from your ISP. I did a search for "DNS" on the ATT/YAHOO member web site.
This fixes the slow checking and sending of mail....It also fixes problems where mail sends slow and may give Authentication errors.
I spent many hours on this and finally the answer was posted on this forum.
Public DNS servers are less likely to be changed. They have been tried and do work. Nobody knows why.
For Public DNS servers look at.
http://www.tech-faq.com/public-dns-servers.shtml

Receiving Mail Very Slow - 1Kb!!

Hi,
This may have been solved somewhere else - but I've search and search but can not find a solution. Please post a link to the thread/post that solves this problem - if there is a solution - otherwise just post solution here.
The Version of Mac Mail we are running is 3.6 on OSX 10.5.8
I seem to have an issue with receiving emails.
I think it is a Mac Mail problem (program) than anything else.
I've tried the internet (Google, Apple Forums) but can't find a solution.
What seems to happen is Mac Mail seems to sit/stall on downloading/receiving emails - especially if they have attachments.
It tries to download them - but instead of going at full speed (say 600Kb) it may download them at 1KB - thus taking for ever to download.
Emails will eventually download but they may take several hours - and all other emails bank up.
The only way I found to fix the problem is to do a restart of the computer - but that may only solve the problem for 5 minutes.
I read that turning "Configure IPv6" to "Off" under TCP/IP - network settings - might help - but it didn't.
This problem is happening on all our iMac computers - OSX 10.5.8.
None of these email accounts sync to an iphone or the like and they all just run one account.
All are running POP accounts.
Downloading the same email from Webmail gives me download speeds I should/would expect where as Mac Mail starts off at a high speed (for about 5 seconds) then basically drops straight away to 1-2Kb download speed.
Surfing the Internet is fine also.
Rang up the ISP by they couldn't shed any light on the situation - saying it was the program than anything else.
Tried changing the account to IMAP - which on the Mac means you have to create a new account which creates its own issues!! This sort of worked but ideally the account should be a POP account.
I have also rebuilt the mail boxes but this didn't seem to help much.
Sending is fine.
Any thoughts would be greatful.

The way i managed to fix it instantly was:
Go into MAIL and PREFERENCES and then in the Accounts list select the account your having problems with (if you have multiple accounts otherwise the account should already be selected)
Click on ADVANCED and at the bottom where it says about AUTHENTICATION POP (APOP) and untick the use SSL box.
Save this when prompted and this should solve the problem.
Hope this helps someone else out there!

Mail will not receive nor send mail, very annoying

Hey all. I have this problem in Mail that it will not send nor receive the mail. I know you're gonna tell me to look in the forums as well as the support documents, but I have done those like...10 times? So I seriously need help. Both my yahoo and Gmail accounts will not work anymore. All the settings are all right and Mail used to work like a dream. I suspect it's something to do with the servers because when I try to set up mail in Entourage, it won't work as well. Any ideas. TIA! By the way, I can excess my mail through the Gmail website. When I try to excess my Gtalk account through Adium, it won't connect as well.
Message was edited by: I love my macbook!

Hi,
Sorry to hear that your email doesn't work.
Can you please explain what your settings are?
Take each account separately. Try to work on one at a time.
My wife uses gmail from Mail, and every few months something stops working. Each time, I find that Google has changed something on their end that requires me to change/tweak one of her settings. I find the help on gmail.com to be invaluable for this. Make sure that they are exactly the same as in the help files.
My wife's parents use yahoo for mail. There email also sometimes fails. I don't know why. They live in Europe, so I'm not sure if it's just that they are awake when most of us in the western hemisphere are asleep when they do maintenance or something. It seems to just stop for a day or two, then work again. Yahoo also has some help files.
David

Sending mail very slow

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