Can't send email from any account in Mail app

Suddenly, a couple of days ago, Mail started refusing to send mail in my .Mac account. I changed nothing in terms of settings and the way I do stuff. Receiving has been unaffected.
I'm at a loss to think what it could be... any ideas?
Thanks.

Sure your ISP provides some POP and/or IMAP accounts with access to an SMTP server as part of the service. Have you tried sending with that?
In an attempt to fight spam, many ISPs restrict the ability to send using an outgoing (SMTP) server not owned by them, usually by blocking port 25 for all traffic outside their own network, which means you cannot send with an SMTP server not owned by them if configured to use that port number.
Something that often works is changing the outgoing server port to 587 (or whatever alternate port number the outgoing server listens to) instead of 25 and using some form of authentication in Preferences > Accounts > Account Information > Outgoing Mail Server > Server Settings, but two conditions must be satisfied for this change to work: (1) the ISP must not block that port as well AND (2) the outgoing server in question must listen to that port and accept a form of authentication not based on the IP address you’re connecting from.
Independent mail service providers not tied to a particular ISP, such as .Mac and Gmail, do allow authenticated SMTP access on port 587, which is the reason changing the outgoing server port number solves the problem for them if the ISP doesn’t block that port as well:
http://docs.info.apple.com/article.html?artnum=75124
http://mail.google.com/support/bin/answer.py?answer=13275

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Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.)
Or this - Delete the account in Mail and then set it up again. Settings->Mail, Contacts, Calendars -> Accounts Tap on the Account, then on the red button that says Remove Account.
 Cheers, Tom

Sending emails from some accounts in Mail.

I have IMAP accounts in Mail connected to two different hosting accounts.
All of the accounts in Mail can receive emails but the email connect to one hosting account can't send emails from Mail.
As its' one email account that won't send I'm assuming it's that account's SMTP settings.
My ISP have told me that SSL needs to be deselected. If I try to deselect it it selects straight away.
To stop this I'm using the custom port 587.
I have Authentication set to password.
The connection Doctor shows everything connected.
I have read all posts about this but still can't get this to work.
Can ANYONE offer any advice how I might get this to work.
I've used Macs for 15 years but I'm seriously thinking about moving to PC now.

And, you have tried this then?

Can't send email from iCloud accounts on Mac

A few hours ago I couldn't login and receive email to my icloud accounts this appears to have been fixed but I still cant send email. I've checked all passwords in preferences.
I can login to icloud via the browser and send email Ok.
I can send email from my iCloud accounts on my iPhone.
But can't send mail using Sparrow or Mac Mail on the desktop.
This all seems to have happened since I installed the latest security update.

Using smtp.mail.me.com - also tried smtp.me.com
SSL yes
port 587
SMTP Authentification Yes
Security SLS/TLS - also tried STARTTLS
User full **@me.com email address - also tried user name without @me.com
I have spoken to apple support this afternoon and we tried the variations shown above.
Support told me to wait for a day and try again!
After the iCloud authentication problem last night I changed all my passwords I wonder if there is an SMTP problem at me.com perhaps not reading the updated passwords?
I'll try and use the old passwords later.

"Sender Name is Invalid" (can't send email from POP account) iPhone 2.1

I updated from V2.0.2 to V2.1 today. I also swapped out my original iPhone EDGE for a new iPhone EDGE due to unrelated problems with the speaker.
Upon testing things after restoring from backup to the new phone I discovered that I could no longer SEND email from my POP account. I could receive email just fine on that account. Sending and receiving email on my MobilMe account also worked, as did sending and receiving email via the POP account while on the Mac computer I use to sync with this iPhone.
After digging into this with AppleCare we discovered that somehow the Port Address for the Outgoing Mail Server for that POP account had been changed from 25 to 587 on the iPhone.
Changing it back to 25 fixed my problem.
We don't know whether the problem was due to the 2.1 upgrade or due to something in the restore process after swapping the phones.
If you get the error message "Sender Name is Invalid" while trying to send email from a POP account on your iPhone, go to Settings > Mail, Contacts, Calendars and select the line for your POP account.
Now scroll down to the Outgoing Mail Server entry which should show "SMTP" and the name of the outgoing mail server for that POP account. Select that line. This will display a list of servers with your POP account server showing at the top as the Primary Server. Select that line.
In the panel that displays, check the Server Port. If it is something odd like 587, that may be your problem. Select the line and you can edit it to something more normal like 25. Touch the "SMTP" button at the top left of the number entry screen to accept that new value.
We discovered that after correcting that value on the iPhone it STAYS corrected even after doing a new Sync with iTunes, or after MobileMe syncs.
--Bob

Sorry you had problems Bob.
Depending on the mail service you are using, Port 25 or Port 587 are usually acceptable for outgoing
SMTP mail. Many cafes will block the customary port 25 to prevent spammers from using their
wireless access.
There is a superb tutorial posted here:
http://www.webmail.us/docs/support/Macintosh-OSX-Mail.pdf
Also be sure for each mail account to turn ON the secondary AT&T server shown at the bottom
of the SMTP server list for each account -- it will make your transition from wireless to Edge
to 3G networks much more reliable.
Thanks for sharing what you've learned. Hope this helps.

Can not send email from .mac account from the iPhone

I'm having problems sending email from my iPhone from my .Mac Account and says the outgoing server timed out. Any Suggestions?

This error message indicates you are not using the correct server port for .Mac's SMTP server.
Did you transfer the account settings from your Mac to the iPhone automatically via the iTunes sync process or did you manually create your .Mac account on the iPhone?
If the former, go to Mail > Preferences > Accounts and under the Account Information tab for your .Mac account preferences at the SMTP Server selection, select the Server Settings button below for .Mac's SMTP server.
If 25 is available in the Server Port field, enter 587 in place of 25 and when finished, select OK to save the changed setting and then re-sync your iPhone making sure your .Mac account is selected for account settings to be transferred to the iPhone.

Sending emails by Hotmail account via Mail app

Hi,
i just changed my old HTTPMail application on mail to continue to receive and send emails from my @hotmail.com account, as it was no longer functionning.
It's now configured, i receive emails correctly, but can't send any.
i configured it with the output adress smtp.live.com and checked the SSL box without specifiyng any username and pass, all that in the preferences of Mail app.
Is there any way to send email by Hotmail, or is there something in the POP/IMAP difference that i ain't gettin and make it impossible?
The "via Gmail" option wouldn't be one for me. i still wanna use hotmail.
thanks,
Phil

This could be an even simpler way to do it:
http://windowslivewire.spaces.live.com/blog/cns!2F7EB29B42641D59!32413.entry

Can not send email from corporate account when out of office

I have a 3G+wifi ipad, my sending via corp email works when I'm in the office (connected via wifi) but doesn't send when I'm on 3G and other wifi network (my home wifi). When I send from the other locations I can send from yahoo account only. I have tried to change the server port a couple of times but still no luck. Anyone has any idea how solve this problem?

I am still having some of the problems the guy who can't get corporate emails has.
You have already read my thread. Yesterday was a good day, I got every single email I received on my iPhone and main Mac computer on my iPad.
I powered the Pad down last night, turned it on this morning and only got 2 of the 4 I was sent during the night, 2 of them being from my US HO but yesterday I got emails from my US HO on my iPad early in the evening.
I have learnt that ntl world emails cannot be received with 'Push' so that cancels out that being anything to do with it.
There is only one difference in my settings so don't know if this is making any difference:-
On my iPad the smtp authentication is MD5 Challenge-Response.
On my iPhone the authentication is Password, I have tried changing it but it won't let me. Can't think that this is the problem as this is on the Outgoing Server of which I have no problems.
Another odd thing is that when I got my iPhone last year I synched the account settings through iTunes. I did this 3 weeks ago when I got my iPad. I then unselected synching the accounts in iTunes when the Pad was connected as I wanted to set them up manually. Now I cannot access this part of iTunes for the phone or pad, it's ticked but greyed out and doesn't show any of my 4 accounts.
One of the main reasons I bought a Pad is to do emails on it as I find the iPhone a little small to use all day. I am gutted that the Pad is not getting all mails and can't trust it.
Could it be that when I power down it affects the settings as that's the only thing different I did yesterday. I will keep the pad on all day and night but this should not be the problem can it? Don;t want to waste power having it on all evening.

Can't Send Emails From Gmail account on iPhone

Everytime I try to send an email from my gmail account on my phone it says "The connection to the outgoing server "smtp.gmail.com" failed. Additional Outgoing Mail Servers can be configired in Settings>Mail,Contacts,Calendars."

Can you try to set up your email account again? Delete it from Genereal > Mail, Contacts,... > click on your Gmail > Delete Account and set it up from start.
http://iphone-and-i.blogspot.com/2012/01/how-to-set-up-email-account-on-iphone.h tml

I keep getting the message can,t connect to server, can't get email, can't send email from outlook account on ipad

I keep getting message cannot connect to server, cannot send email, cannot get email from my outlook account . This has been happening for past 3 days Feb 2014

Check your internet connection...
If you are connected but can't access anything, your WiFi must be slow.

Can't send email from .mac account on iPhone

I can no longer send from my .mac account. I get the error message on the phone "The connection to the outgoing server "smtp.mac.com" failed"".
This occurs both on edge and on WiFi. I have looked through other suggested fixes and have tried deleting the account on the phone and setting it up directly on the phone. I've also tried toggling the "sync mail account" setting in iTunes.
Any help would be greatly appreciated!

Assuming you are using the Mail.app on your Mac, what are you using as the server port for .Mac's SMTP server?
Go to Mail > Preferences > Accounts and under the Account Information tab for your .Mac account preferences at the SMTP server selection, select the Server Settings button below for .Mac's SMTP server.
If 25, enter 587 in place of 25 in the Server Port field and when finished, select OK to save the changed setting and if you are transferring your .Mac account settings from your Mac to the iPhone via the iTunes sync preferences for your iPhone, re-sync to transfer this change to the iPhone.
If the account was manually entered on the iPhone and you aren't syncing the account settings from your Mac, in the SMTP server field for your .Mac account preferences on the iPhone, add 587 to the server separated by a colon.
smtp.mac.com:587
This should take care of it.
My .Mac account is my primary account and I haven't had any problems sending messages with my .Mac account on any WiFi network or EDGE with this setting.

Can not receive emails from any accounts rather than Rogers(my ISP)

Hi all,
I have OCS10g installed on RHEL_AS4. Currently I got problem to receive and send emails both inbound and outbound.
When I send e-mail by either Oracle Web Access Client or Oracle Mail. It went smooth through the sending page. Unfortunately I can not get the e-mails neither from inbound or outbound domains, except [email protected]. Rogers is my current ISP and I am using the TZO dynamicIP service for the OCS server.
The configuration for smtp_inbound_server are as following. Has anyone known the solution of my problem?
Thanks,
smtp_in:115202828832018325
Mail Collaboration Suite Database:
Message Intertion Mode: RoundRobin
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Delivery Collaboration Suite Database:
Selected Collaboration Suite Database: orcl.myocsdomain.com
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LDAP Connection Retry Parameters
Max Con. Retry Int.: 100000
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Threas Parameters
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Temp. DSN Int.: 24
Include Complete Error Message in DSN: True
Rules and Routing Control Parameters
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Spam Max. Flood Count: 10000
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Enforce Reverse DNS lookup on Client IP: False
DNS check on Helo/Ehlo domain: False
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mail.myocsdomain.com
Trusted Sender Domains:
hotmail.com
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Max. # of Headers Allowed in a message: 1000
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mtext Delivery to ******@gmail.com failed rcode=1 smtp_err=421
There is no error message about sending to [email protected], however I couldn't receive any emails I send to myself.
Thanks for your time in advance.

All of a sudden I can't send email from any of my accounts on both my iPad and iPhone?

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Cannot send email from any account

Mail says all my accounts are off line. I have pinged, network checked, tried various ports, removed and reinstalled accounts, used time machine, all to no avail.

Hello DRB1962
Check to make sure that you validated the device within your account on webmail.
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http://support.apple.com/kb/HT1694
Thanks for using Apple Support Communities.
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I have Windows 7 home Premium os,
My earlier router malfunctioned so have installed new Dlink router DSL-2750U and after that i am not able to use scan to email & Fax to email options.
Email id to forward mail is a gmail id.
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Backing up a moment, how do you access your email;
Software based program (ex. MS outlook, aol desktop)
Web browser (ex. Google Chrome, Internet Explorer, Firefox)
Another method
Scanning to email requires a software based email to be open.
However, a work around may be present if you were able to provide the information stated above.
I am a HP employee.
--Say "Thanks" by clicking the Kudos Star in the post that helped you.
--Please mark the post that solves your problem as "Accepted Solution"

Can't send email from any account in Mail app

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