Outgoing mail - cannot send just stopped one day

I hope this has not been asked and answered (which I'm quite certain it has). I have a business cox mail account and Yahoo plus and cannot send emails. But I can receive incoming. I deleted both accounts and put set them up again and the same issues keeps happening. In fact Yahoo is an automatic set up with mail. I am quite frustrated. Mail remains in my outbox and I get no messages regarding how or why they are not sent. They just sit there. Can anyone offer assistance? Thank you

Did you just update to iOS 6?
If so,
This seems to be a working solution for some (while not 100% success):
From Demo:
Try this.
Go to Settings>Safari>Clear History, Cookies and Data. Restart the iPad. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
From JaneMH:
After I plugged in my iPad to my PC and loaded up iTunes and let it sync up that sorted the problem and I am able to connect all right again

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Just upgraded to Yosemite 10.10.2 on my iMac 24 inch and now my Suddenlink POP email account won't accept messages. The message says unable to receive Mail and the warning says: Mail cannot send your password securely to the server. You can remove th

Yesterday I uploaded Yosemite 10.10.2 thinking it was fixed by now. In Mail, my POP account gets this error message: Mail cannot send your password securely to the server. You can remove this restriction in the Accounts preferences by setting “Allow insecure authentication”, which could put your password at risk.
My provider says it's an Apple issue. The gmail accounts are logging in fine. Any help? Something simple?
Thanks anyone.

Thanks Csound1. That did work and Mail was able to connect to the internet. Green light status. Is it because of my provider that I may never have had secure connections? Is that an Apple thing or do PCs have the same issues? Appreciate your help. I'll research insecure connections as I am ignorant of the consequences.

POP3 Business E-Mail CANNOT SEND HELP PLEASE

POP3 Business E-Mail CANNOT SEND HELP PLEASE
PLEASE HELP I have two business email accounts an cannot send with either. Just lost a big contract because I answered contract questions and then I find out it did not send 3 days later. I have always had (hide sent emails enabled on all previous BlackBerry phones) We need help. FREE HELP NOT COST PER CALL BASIS. This is BlackBerry's problem not ours.

Hey all,
If you have your network service providers SMTP server inputted and still experiencing trouble. Then we suggest contacting us so we can gather logs to find the root cause.
Please contact your network service provider and ask to be transferred to BlackBerry.
This will help us resolve this new issue.
Thanks
-ViciousFerret
Come follow your BlackBerry Technical Team on Twitter! @BlackBerryHelp
Be sure to click Like! for those who have helped you.
Click Accept as Solution for posts that have solved your issue(s)!

Apple's Mail 4.5 just stopped working. Any Fix for it, please?

Apple Mail 4.5 just stopped working - no email gets in or out.
Details:
Account is set to get me connected to my gmail address.
When try to send email the wheel for sending spins endlessly with no result.
No incoming emails arrive either.
When I open the same email address directly from Gmail in Web browser all works OK.
Settings of Mail are exactly as recomended.
Did trash the account and tried to re-create again. The Mail gives message that Gmail server is not responding.
Did try to create another account with completely different server - the same result -message that this server is not responding either.This is incorrect because I can open and use Gmail and the other email perfectly well with Firefox browser.
Obviously the problem is with Apple's Mail not able to make connection and operate properly.
I dont have any special firewall setting, etc. All is set properly. A couple if days back Email 4.5 worked ok.
The question is: How to fix this Email 4.5 and make it work again (or I should just get rid of it altogether)?
Thanks for any competent tips, fellow Mac users!

Hello
just to esaly confim a plist , file or other problem corruption into your curent account
create just for test a new account ( system pref -> accout panel -> click PLUS button bottom left of window ) , then perform mail setting for your gmail accout let see if that work ?
HTH
Pierre

Attachment size - Mail cannot send email attachments over 1.5Mb

Had this issue with Mac mail for well over a year now.
Mac Mail, connected to Exchange server.
Mac Mail cannot send attachments over about 1.5Mb. This does fluctuate, sometimes its as low as 600Kb.
It seems to be related to the internet speed you have, Slower internet connections and attachment size you are able to send goes down, faster speed and it allows bigger attachments to be sent.
Im assuming its some kind of time out issue.
With Windows and Outlook on the same internet connection = NO PROBLEM AT ALL!
This means its not an exchange only problem, its specific to mail and exchange.
I have several friends all switched over to Apple in the last 2 years and ALL having the same issues and despite logging several calls with Apple and trying everything they have suggested still no fix.
I have searched around and it seems lots of people are having similar issues all with no resolution to this.
Please can someone suggest anything new that might resolve this, im happy to try anything!

@Brooksymj
We had a similar problem - but we had one Mac which had been migrated from and old G5 Tiger to a new Intel iMac Snow Leopard and no problems existed (all size attachments send), so we checked out what was different about that machine's mail.plist preferences. We spotted some obvious ones that didn't exist on a clean install of Snow Leopard, so added them, which worked for us, as follows...
1/ get Pref Setter (www.nightproductions.net/prefsetter.html)
2/ quit Mail and launch Pref Setter
3/ find com.apple.mail and double-click it
4/ click once on any one of the entries without an expansion triangle
5/ click on Actions and select Add New Array
6/ call the new array DeliveryAccounts (no space)
7/ with DeliveryAccounts highlighted, click Actions and select Add New Dictionary
8/ leave the default name of Item 1
9/ with Item 1 highlighted, click Actions and select Add New Key
10/ call the new key MaxMessageBytes (no spaces)
11/ change MaxMessageBytes class to Integer
12/ set the value to the maximum individual message size permited by your exchange server
(ours is 50MB = 52428800)
This also worked on my mbp with Lion.
Hope this works for you!
Ian

Setting up mail. cannot send password securely

when i go to set up my mail with my aol account i get a message saying mail cannot send my password securely to the server. this is on the first welcome screen where you enter your name email and password.....it does give me the option to do it manually but if i do that i cannot send any email but i receive email. i checked the incoming and outgoing settings and there right..... what does this mean is there anyway to get past this
thanks

I've never seen this particular warning, but it's important to note that passwords for e-mail are always sent insecurely unless you are able to connect via SSL. You can set Mail to connect via SSL in the advanced account settings, assuming that your mail provider (AOL) allows such a thing, which some do not. Even if the password is sent encrypted, the rest of the e-mail is not, so you should never send any confidential information via e-mail, any more than you'd put it on a postcard.

Loaded Yosemite onto mid 2011 MacBook Air. IMAP account goes offline - message - Mail cannot send your password securely to the server. Allow insecure authentication doesn't work. Repeated reloads. No joy. Help!

Mail cannot send your password securely to the server. You can remove this restriction in the Accounts preferences by setting “Allow insecure authentication”, which could put your password at risk.

I have the same problem.
Late 2012 imac 27", intel i7 core
When I upgraded to Yosemite, suddenly my email account (netvigator POP) gives an error:
Mail cannot send your password securely to the server. You can remove this restriction in the Accounts preferences by setting “Allow insecure authentication”, which could put your password at risk.
I have shut down & restarted mail, but no success. If I select Allow insecure authentication, it works, but that's not a long term fix.
I also have a hotmail POP account enabled, and that is working fine.
What's happening Apple??
(Long term apple family - iMac, iBooks, TimeCapsule, iPhones, iPads, AirportExpress etc etc)

Since installing Mountain Lion my Safari will not access my contacts list when wanting to forward an e-mail or send a new one. Why?

Since installing Mountain Lion I am unable to access my contacts list in Safari to forward an e-mail or send a new one. The Insert contacts link above the address box is not active and will not access the Contacts List. How can I fix this?

Can you open Contacts and edit, insert, and delete cards, or does it fail to work, also?
Try the steps I outline here: Re: After Lion upgrade, my addressbook does not work++

HT1349 i can not text any more on my iphone it just quit one day

I can not text any more on my iphone 4 it just quit one day we have verizon as a carrier can anyone help

Did you just update to iOS 6?
If so,
This seems to be a working solution for some (while not 100% success):
From Demo:
Try this.
Go to Settings>Safari>Clear History, Cookies and Data. Restart the iPad. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
From JaneMH:
After I plugged in my iPad to my PC and loaded up iTunes and let it sync up that sorted the problem and I am able to connect all right again

Cannot send email to one particular address

I've lost the ability to send emails to my work email address, it seems to have stopped working in the last 30 days or so. I can receive emails from the work address to my personal address, but sending from the personal address to work doesn't work. The emails are not returned as undeliverable. I have Verizon FIOS as my provider, I have tried sending email to my work address from their web email interface and it works fine, so the problem lies in Thunderbird. Anyone have an idea what has happened? I'm not having an issue sending or receiving to any other address.

''Matt [[#answer-667247|said]]''
<blockquote>
It is just a shame Verizon employ support that is not.
Sending from Thunderbird uses a completely different set of protocols and procedures to web mail.
Sending from Thunderbird is analogous to sending snail mail by dropping it in a pillar box in your street corner. Sending using web mail is more like going to the local mail sorting house and dropping the mail into the truck delivering to the city your sent your mail to.
In my analogy there is one huge difference, your anti virus program does not scan outgoing web mails, it does not even see them as mails. The same goes for incoming mail.
So when support people start blaming outlook or Thunderbird and saying it must be the problem, what they are really saying is they actually know nothing more about mail than you do, they have arrived at the end of their script and your have no resolution, so please go away.
We try to do a little better here, but sometimes we can't. Verizon have access to the outgoing servers, they could tell you if your mail ever actually leaves their system, we can only guess.
So what is the mail server your sending to? Is the outgoing mail address your work one?
When you right click on the account name in the folder tree and select settings. On the bottom right is the outgoing SMTP server for the account. Is it what your think it is?
</blockquote>
The outgoing mail address is to my work email, it's @us.ibm.com, I checked the SMTP server name, it is outgoing.verizon.net which is correct.
You're right about Verizon support, once I was able to send via their web interface, they were pretty much done with me....and I pay for that support too...
This is probably going to end up being something simple, at least i hope so, but at the moment it's very frustrating...

10.4 mail cannot send

Hello,
I have an old imac which is running 10.41 while my intel Mac runs 10.68. I have one e-mail .mac account attached to the older computer. Over the last couple of days I have been unable to send e-mail on my older mac. It receives e-mail just fine though. The same account sends and recieves fine on my intel mac (and on my laptop). The message I get when using connection doctor is that there is something wrong wih the smtp server. The outgoing mail server is exactly the same as the one on both of my other computers and they work fine. I've deleted the account from the old imac and put the information in again. I've even tried using IMAP but it still doesn't work. I read on a thread that I needed to throw up my mail plist and did that as well.
Any suggestions would be most appreciated.
Thank you.
Keith

Hi Keith, it can be be done in 10.4.11
You cannot use .mac or MobileMe as type of Account, you have to choose IMAP when setting up, otherwise Mail is hard coded to change imap.mail.me.com to mail.me.com & smtp.mail.me.com to smtp.me.com, no matter what you try to enter.
iCloud Mail setup, do not choose .mac or MobileMe as type, but choose IMAP...
IMAP (Incoming Mail Server) information:
• Server name: imap.mail.me.com
• SSL Required: Yes
• Port: 993
• Username: [email protected] (use your @me.com address from your iCloud account)
• Password: Your iCloud password
SMTP (outgoing mail server) information:
• Server name: smtp.mail.me.com
• SSL Required: Yes
• Port: 587
• SMTP Authentication Required: Yes
• Username: [email protected] (use your @me.com address from your iCloud account)
• Password: Your iCloud password
If that doesn't work, go back & edit/check the Incoming & Outgoing servers.

OSX Mail - Cannot send message using the server ....

Hi there,
Mac Pro with OSX 10.6.
*Can receive mail, but can no longer send email* using the program Mail.
Been getting the popup "Cannot send message using the server [shawmail.vc.shawcable.net] for the past 3 days. I hadn't changed anything about my computer, and have had the Mac for 2+ years. So this just started doing it on it's own.
I had a technical support guy from my service provider even interface with my computer, where he could see my desktop right over the internet, and he couldn't get it fixed either.
I googled this problem, and found solutions like:
1. Uncheck "Use SSL" (Done that, and it was never checked "on" to begin with)
2. Make sure Authentication is set to none, with no password (done that, and it wasn't set with a password to begin with)
3. Delete [user]/Library/Preferences/com.apple.mail.plist (done that, didn't do anything)
4. We even totally deleted my account, and started a new fresh one. Didn't work
The tech support guy did show me a way to email online, using the same email account. That worked, but it's a hassle to go onto a web-based email program -- it's not my preference. So, with great certainty, it's not my service provider, because I was able to send emails on this web-based email program using my email account.
So there, I'm stumped.
Hopefully someone can help. What's bizarre is that googling this problem, I have found many other people that say it happens arbitrarily, out of nowhere.

I can't believe how ridiculous this issue is. i have been searching for days for a solution to this. i have tried EVERY recommendation on these forums and nothing works. It appears that this issue dates back to TIGER. I had this problem back in January and just bagged figuring it had something to do with iweb. I bought a new html program and was able to send out my newsletter last month no problem. Suddenly, one month later- here i am again, unable to send out my newsletter with no help from Apple or verizon, or these forims, or anyone else. To think that a company that I have stood behind and loved so much can't be be bothered fixing such a simple issue that has been going on now through 5 OS's (I am using Lion but I had the issue using leopard as well) is a disgrace.

Mail cannot send to any account!

Snow Leopard has broken my long-term Mail system!
I note that fairly recently I had problems with Mail (under 10.5) that meant it only did outgoing mail on one of two commonly-used servers. This was fixed by restoring an old (pre-problem) version of Mail prefs. Thunderbird and Eudora worked fine with identical server settings.
http://discussions.apple.com/message.jspa?messageID=10039384#10039384
Well after installing 10.6 NEITHER of my accounts will accept outgoing mail! One still shows no reason ("cannot send') the other claims that the outgoing address is rejected (oh no it isn't - the university system does not check). Incoming mail is fine.
Again Thunderbird works just fine for both outgoing and incoming mail (also under 10.6). Restoring pre-problem prefs no longer helps.
Any suggestions? (other than dumping Mail and using Thunderbird!!)

I got my outgoing Mail working in Snow Leopard. Here's how...
Since I have a cable modem, Cox does NOT require Authentication when sending via Cox's smtp server. A Cox representative told me this. Cox's servers can "see" my authorized cable modem and the servers KNOW that I am a legitimate user of their smtp server. So, no outgoing mail software-based Authentication is needed. Because of that, I have NEVER had to turn on Authentication for smtp outgoing mail. NEVER!
Well, Apple's Snow Leopard Mail has changed SOMETHING that is giving Cox's server fits. Apparently, Apple has decided you HAVE to use software-based smtp Authentication whether you want to or whether your ISP requires it, or not!
So.... to get my outgoing smtp mail working again, for each of my accounts, I had to individually set up smtp settings WITH Password Authentication turned on. Of course, it's the same password as I use for checking mail on each of those accounts. But, once I got smtp Password Authentication turned on, I'm back to being able to send Mail.
I'm sure the changes Apple made to Mail are all about improving security, etc. But this is really a bunch of BS. They have just inconvenienced a BUNCH of customers. If my ISP doesn't require Password Authentication for outgoing E-mail because I have a hardware connection that verifies who I am (that I'm a customer), then Apple has no business FORCING the Password Authentication for smtp!
This is about as dumb a thing I've seen Apple do in quite awhile!
Mark

Mail Cannot Send..... Again!

Heavy Sigh....
I just installed a great new 500GB hard disk. I decided to wipe my old disk and go for a completely clean install onto the new disk. Everything went perfectly, except for Mail.
I had the same Mail problem when I upgraded from Tiger to Leopard last year. It took ages to fix. I kept a careful record of every setting I entered.
This time around, I entered everything just as it had been..... and it doesn't work again.
Heavy sigh....
OK, so, I can RECEIVE my mail from my email service provider's server. But I cannot SEND.
I try to send and up pops the following message box:
Cannot send message using the server (NAME).
The sender address (MY EMAIL) was rejected by the server (NAME).
I select Connection Doctor and both Connection/Login and Connection/Server are triumphantly successful.
So why oh why can't I send!
Ports. Me thinks it must be the ports.
So, Edit Server List/Advanced and my port is 465, just as it was before and has always been. I try the Use Default Ports option, which lists 465, along with 25 and 587. I close everything and...... still cannot send despite Connection Doctor connecting.
Well, I dunno.
Please help.
Martin

+Cannot send message using the server (NAME).+
+The sender address (MY EMAIL) was rejected by the server (NAME).+
I suddenly started having the can't send mail problem yesterday. Sometimes I was getting an error message related to STMP, other times it was exactly as you described. I followed all the directions here: http://support.apple.com/kb/TS1307?viewlocale=en_US
and those did not work. But they might, if quitting is done at the right time....
I don't know what fixed it, and I'm not sure if it will remain fixed (last night I fixed it on my own, only to find when I started up this morning that it wasn't working again), but today I followed the advice from another discussion to delete the outgoing server (in prefs/accounts/outgoing pulldown menu) and make a new one... make sure to delete all mail that is pending (anything in outbox save as draft and delete)... and to quit. In other words - follow the instructions on the support page or some of the other discussions, but quit before trying to send again. The other thing I did was do a software upgrade - there was something for airport and a security fix that I installed. Whether it was doing just the right stuff in just the right order or if it was the software installs that moved things along, I can't say. By the looks of it, this seems to be a long time issue for Apple Mail, though I've been using it for years without issue.

Cannot send iMessages to one of my contacts

I have a new iPhone 5s. iMessages work with all of my other iPhone contacts, but one. It worked with him intermittently and now has stopped completely. For a few days the only thing I could do was send him Texts (which came up in green on my screen), but he never received them. And when I 'push' the iMessages out as a text, he never get them. When I try to send this one contact an iMessage, it immediately comes up with "not delivered" with a '!' symbol. I re-try several times but it doesn't work. I have shut messages off and on several time, shut my phone off and restarted it, deleted him from my contact list and added back. Nothing seems to work. He cannot send me anything either. He has an older iPhone, without the upgrade (I think) and he says I have a green dot, not a blue one. I don't know the old operating system, so I don't know what he has on his screen. Please, please help. It is important that I have easy messaging capability with this contact. Sorry to be so long... but the AT&T store people were not able to help me. Very frustrating!

It may be an issue at Apple's end. Check the link below.
http://www.apple.com/support/systemstatus/

Outgoing mail - cannot send just stopped one day

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