I can no longer send e-mail in TB but still receive it.

Recently TB quit allowing me to send e-mail messages. I still receive mail, but when I try to send messages, I am prompted for a password. It does not accept the correct password. I can send messages from my iphone and a web-based e-mail app, so it is not a problem within the account, just with TB. How to I correct this problem?

Get a list of SMTP server settings from your email provider and check those against what you have in Thunderbird. Maybe one of the SMTP server settings needs updating.
If you need help looking at your server settings, go to the Help Menu and select Troubleshooting Information. Clear the box to include Account Names. Press the button labeled Copy All to Clipboard and then come back here and paste that info to a reply box.

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Can no longer send email from my accounts but can receive

I have 5 email accounts set up on my imac. 3 are mine 2 are my partners. I can no longer send emails from my accounts but my partner still can. They all still receive mail but when I attempt to send mail I get:-
Cannot Send Message Using Server
Then i'm asked to select a different server from a list. I have tried all but to no avail.
I first of all deleted my partners sky.com account because it appeared to me that this was maybe overiding all other accounts and it was no longer needed on imac.
I then deleted one of my accounts - hotmail, to see if i added it again maybe it would work but now I cant even re add the mail account as everytime i go to mail, preferences account to set it up again the initial screen comes up with my partners details including the sky.com username and when i overwrite these and try to install hotmail acount I get told that logging in failed check user name and password is correct. Which they are.
All used to work fine but now I have these problems, they appeared to have started when my partner set up an icloud account and is synching with this - could this be the cause?
I can send email from my accounts from iphone still but no longer from imac.

First,
I'd run all availiable software updates. After that, I would try removing all of the accounts from "Mail", and then re-adding them. Be aware that if your folders and such are located on your mac, and not on the mail servers, you may risk lose some information (always have a back-up).
Sometimes, when you have a number of e-mail account there can be server issues abound. I would go into the server lists and make sure that they are set properly. If you see the "use only this server" box, check it for each of them.

I can no longer send e-mail from Mail version 3.6

I am able to receive e-mail but can no longer send mail. Any ideas. It is a PowerMac running OS 10.5.8 with Mail 3.6

Hmmmm,
Not certain, but this can fix myriad Mail problems...
Safe Boot from the HD, (holding Shift key down at bootup), it will try to repair your Disk Directory while the spinning radian is happening, so let it go, run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, then move this folder & file to the Desktop.
Move this Folder to the Desktop...
/Users/YourUserName/Library/Caches/Mail/
Move this file to the Desktop...
/Users/YourUserName/Library/Mail/Envelope Index
Reboot.
If that doesn't do it and you can afford to redo all your Rules, try these & reboot...
/Users/YourUserName/Library/Mail/MessageRules.plist
/Users/YourUserName/Library/Mail/MessageRules.plist.backup
Note, in 10.5 & up /Users/YourUserName/Library/Caches/Mail/ may or may not exist.

Can no longer send e-mail

I recently did the iOS 7 update. I'm now at 7.0.2. When I updated to 7, I could no longer send e-mail messages. I didn't change any settings, is just no longer sent them. They sit in the outbox after receiving the message immediately that "Cannot Send Mail." Any ideas?

First you should wait. It could be a problem with your email provider. If that doesnt work I would delete your mail accounts and then create them again. You wont lose anything its just removing the account and putting it back on. Try to keep the maill app running in the background when you are sending the email. If this doesnt work i would suggest backing up your iphone and then restoring it form backup.

Can no longer send e-mail (FireFox made me sad) and others

I suddenly stopped being able to send e-mail (FireFox 3.6.2x) from my browser-based iNotes e-mail. I upgraded to FireFox 8.0.1. Same problem. I tried FireFox help and could not send a "FireFox made me sad" e-mail to you. I tried Google Chrome and it is sending mail fine, but you would not let me send a "FireFox made me sad" from Chrome. This is another attempt to contact you as I can find no feedback e-mail address to send from another e-mailer. I am running Windows Vista.
I have tried adding my iNotes server to XUL manager. I want to stay with FireFox but can't seem to tell you about the problem (others may be in the same boat...).

Get a list of SMTP server settings from your email provider and check those against what you have in Thunderbird. Maybe one of the SMTP server settings needs updating.
If you need help looking at your server settings, go to the Help Menu and select Troubleshooting Information. Clear the box to include Account Names. Press the button labeled Copy All to Clipboard and then come back here and paste that info to a reply box.

For the last two days am unable to send e mails....still receiving but unable to send...am on a Pop3 with hotmail but not technical!,

Got the last two days my hotmail account on my iPad won't send e mails. Can still receive and my sky e mail account works fine too....any advice...message says.... 'sending message content to the server failed'. Incoming server is Pop3 and outgoing is smtp.live

I assume you're using Mail. I'm sure you've checked and re-checked but it is very likely something minor wrong with your smtp settings.
In Mail>Preferences>Accounts, click on your email account tab and from the 'Outgoing Mail Server (SMTP)' drop down menu select 'Edit SMTP Server list. On the Account information tab make sure you have got the correct smtp server address. On the Advanced tab verify that you have the correct Authentication, that the Password is correct and that the User name is correct. I have various email accounts and some of them require the complete email address against User Name while others only require the part of the address before the @ symbol. Get that wrong and it could be your problem.

Mail delivery fail but still received mail

hi
i keep receiving 2 messages straight after receipt of the original which is readable..
1st message: mail delivery fail
2nd message: undeliverable
i have no problem reading the original message
regards
kel

This is a problem with your recipients ISP not delivering the email, or with Comcast in not sending it once it reaches their mail servers. You should check with your recipients to find out if they use the same ISP, and have them check with the ISP to ask why mail sent from a Comcast account is not being delivered.
If this affects all your recipients (assuming there are many more than just the two you mentioned), then its a Comcast issue and you should call them and insist they make any necessary changes so everyone can receive email from you. If it only affects those two recipients, they would need to call their ISP and have them make the necessary changes.

Can no longer send mail with Airport Extr

I can no longer send e-mail with Mac Mail.This problem cropped up all of sudden this morning.
The problem appears to be with my Airport Extreme.
If I bypass the router and go straight to the modem, I am able to send mail.
After I connect the Extreme back up, I can no longer send any mail.
I am having this problem with both a Mac Pro and iMac.
I did not make any changes to the settings on my Extreme.
Can anyone suggest what I might be able to do to correct this problem?

Well, it happened again.
This morning I was sending out a bunch of emails and around the 10th one they started kicking back.
This time I did not fool with any of the settings on my computer.
I turned off both the modem and router. Started them back up and the problem still exists.
The last time this happend, about a week ago, it started working again within an hour.
This problem ony crops up when I am sending many emails at the same time
Throughout the rest of the week it works fine.
This time I by-passed the router and the mail will go out.
So it looks like someting is going on with the router.
Whenver I hook the router back up, outgoing mail will not work.
It says it cannot send mail using my server.
I double checked all of my mail setings and nothing has changed
I also did a hard rest on the router, but it did not help.
Again this problem is with 2 computers.
I have an early version of Airport Extreme Model A1143.
It's around 5 years old.
Whenever I call my ISP they claim everything checks out on their end and they don't offer any help.
I am sure if I leave the router unplugged for a day or so, it will start working again.
Is there any way a router can break down and allow incoming mail and internet but not outgoing mail?
I am am at wits end with this problem.
I would be willing to go out and get the latest Airport Extreme if I knew for sure it would cure this problem.

Can no longer send mail through Apple Mail

Starting yesterday morning, I can no longer send mail via Apple Mail. I can receive it just fine, but when I try to send, it struggles for a minute, then leaves the message in my Outbox. When I open Mail's "Connection Doctor," it says "Could not connect to this SMTP server"; it says this for all three SMTP servers I routinely use, including smtp.mac.com.
No other computer in my house has this problem. In fact, if I switch to a different account on my Mac and use Apple Mail with these same smtp servers, it works fine.
Needless to say, this is completely mystifying to me. Does anyone have any idea what's happening, or how to correct the problem?
Thanks.

Do my eyes deceive me? Am I dreaming? Could it really be true? Looks like Apple (finally) fixed this issue! Simply update your Mac to 10.5.5. It might reboot several times. That is normal. When it finally reaches the desktop open your Mail app and try sending. It should now work for you. I couldn't be any happier, after over a year without Mail it's finally working again! This is the update that everyone's been waiting for

I can no longer send emails from my mac yahoo business account, but can send them directly from yahoo. just not from mac mail. I've been able to send emails perfectly fine until today. Help!

I can no longer send emails from my mac yahoo business account, but can send them directly from yahoo. just not from mac mail. I've been able to send emails perfectly fine until today. I've been on the phone with yahoo mail and they've verified that my account settings are correct and I can send email from yahoo. I can receive emails via Mac mail, but just can't send them. An error message appears that says:
"Sending the message content to the server failed." I can't send emails from my Mac desktop, iphone or ipad. Any suggestions! Help! I'm a Mac rookie and so frustrated! Thanks.

Please read and begin using Can receive email, but not send email. I had a similar issue with Comcast mail (could receive by not send) and found my answer in this letter. For me it took resetting the outgoing mail and telling the system to use a password when sending outgoing mail. If you need help with that please advise and I'll tell you where to look.

Can no longer send mail - strange errors/activity

I'm hoping a guru can help me. This is driving me insane. My mail has worked perfectly for years. Over the past 2 days, it can no longer send mail. I can recieve, but not send.
It first began with error messages saying that it couldn't use Port 25. My ISP doesn't block this port, so I tried using four other mail servers from other email accounts. Again, all give the same error. Now when I try to send a message, they just sit in my out box. When I try to resend, it does nothing. The activity monitor quickly states "Copying message to outbox". That's it.
I'm at a loss. Any help is really appreciated.

Ignore this message, I JUST WORKED IT OUT.
It looks like there is another unsecure wireless network in our building and for some reason my Powerbook defaulted to using that, rather than my own wireless account.
So with this other connection I could surf/recieve but I couldn't send out.
The variables never cease to amaze me.

Can no longer send mail from exchange account

My send mail icon is now greyed out and I can no longer send mail. The only thing that I have done that I never do is I selected the "synchronize" option on the mailbox name after right clicking on it last night.
As far as Mail goes, I attempted to set up a MediaCom email box several days ago that never worked correctly, but I changed no settings on the exchange account and it was working great 24 hours ago. I've deleted the MediaCom email box.
Tried the usual quitting, rebooting but nothing is working, any ideas why this started and how to fix.
Mark

It is possible the Evil Starbucks empire has blocked SMTP sending as an antispam measure. You would need to log in to your email server using the smtpauth protocol. For example, Earthlink has an smtpauth.earthlink.net server for secure sending, which I was able to use sending from any public AP. Possibly T-Mobile has a similar authorized server.
But nowadays I just use Gmail, they make it easy and reliable to send from anywhere because they use a custom smtp port. Yeah, Gmail solved a multitude of problems with mobile sending.
Aluminum PowerBook Mac OS X (10.4.7)

After installing the new Yosemite OS on my iMac I can no longer send email. I can receive email, but not send. I use gmail and can send email on the gmail (google) site, but not on "mail" on my iMac. Any others with this problem? What should we do?

After installing the new Yosemite OS on my iMac I can no longer send email. I can receive email, but not send. I use gmail and can send email on the gmail (google) site, but not on "mail" on my iMac. Any others with this problem? What should we do?

My gmail, which is correctly configured for Mail with gmail SMTP and Google IMAP, works for awhile on Mail, which I leave open while working on other applications. But several times a day I get msg from Google: "We recently blocked a sign-in attempt to your Google Account" . . . and requiring me to verify my account details, re-enter passwords, confirm security settings (or change them from "disable" to "enable less secure methods" and so on). In Mail I also have tried "taking all accounts online", and re-entering my gmail password inside Mail account settings. These steps successfully re-set comms between gmail and Mail ... for awhile, then it happens again. Enough occurrences over a work day that I just quit Mail and revert to accessing gmail directly. Apple Care advisor and an Apple knowledge base article say that Apple can't deal with this, as gmail is third-party app, and they refer me to gmail, and so far I've found nothing helpful there.
From today I also have several instances of a window saying "Mail has unexpectedly closed" and asking me to Re-open it.
I also use Yahoo mail, which stops working with Mac Mail at the same time as gmail, but I do not receive notices to re-verify from Yahoo.
I recently upgraded from Mavericks to Yosemite. The Mail problem happened occasionally with Mavericks but is far more frequent with Yosemite.

I can no longer send from my apple mail since icloud.

I have made a mess of things. I can no longer send from my apple mail since icloud. My outgoing mail remains offline no matter how I reconfigure it.
How do you check your tls certificate? Is is me.com or mac.com?
I am so frustrated.

Hi philo f,
If you are having an issue with printing from your iPad mini, I would suggest that you troubleshoot using the steps in this article -
About AirPrint
Thanks for using Apple Support Communities.
Best,
Brett L

I can no longer send mail....today I cannot get mail..., I can no longer send mail....today I cannot get mail...a message pops up that says:A copy has been placed in your outbox.Sending the message content to the server failed....any help?

I can no longer send mail....today I cannot get mail..., I can no longer send mail....today I cannot get mail...a message pops up that says:A copy has been placed in your outbox.Sending the message content to the server failed....any help?

How long has it been going on? I've had my yahoo mess up and if i wait a bit it resolves itself. Yahoo is doing something with their servers and it messes with your mail if your mail happens to be on one of those servers.

I can no longer send e-mail in TB but still receive it.

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