Cannot send email SMTP to yahoo business email

i have yahoo business email, with 3 email accounts. iphone 3g will happily read the emails of the one account i want it to, but i cannot successfully reply or create new emails, send fails.
i tried to create a gmail account and use its smtp server. this worked for the gmail account, but still cannot send mail to the yahoo account.
tried to delete the outbound email server, but seems to be a bug in the interface - no matter what changes are made in the smtp detail, (even 'delete server') the smtp server for yahoo wil not delete. accordiing to some posts i read, supposedly if main smtp server is deleted, others in chain will pick up. this is not happening, when outbound function fails, it does not try with other smtp servers. yet send does work from gmail account!
what is the correct setting for yahoo? why cant i disable yahoo's standard smtp server as preprogrammed into iphone?

I have the very same issue. Can't delete or modify the "primary" account. All attempts to send result in the same, "Cannot Send Mail" message. As yet, I have heard nothing and the latest update ... 2.0.1 ... had no affects. Let me know if you find the solution.

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I cannot send email - error message as follows : 'The sender address (my email address) was rejected by the server smtp.tiscali.co.uk.' I can send email from other apple devices, and the email settings are identical. Any ideas?

For some reason I cannot send email - all was working fine, but now I get the following error message when I try to send email:
'The sender address (my email address) was rejected by the server smtp.tiscali.co.uk'
I can receive incoming mail ok and I can send email from other Apple devices. The problem seems confined to my Mac Book Pro.
Ant ideas?

Hello there, Pablo639.
The following Knowledge Base article offers up some great steps for troubleshooting mail issues on your Mac:
OS X Mail: Troubleshooting sending and receiving email messages
http://support.apple.com/kb/TS3276
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

Apple iPad 3. BT email not working. Cannot send emails from btconnect SMTP after iOS upgrade. This is the only difference I am aware of. Can anyone help me please.

BT email not working. Cannot send emails from btconnect SMTP after iOS upgrade. This is the only difference I am aware of. Apple iPad 3. Can anyone help me please.

All resolved at last
Deleted the SMTP setting
Recreated the SMTP using the same settings
Able to send emails now
No logic - as usual - just a bug!

Cannot send emails - connection to SMTP server timeout

I cannot send emails from my Thunderbird. Every time I try, an error message shows up saying that the connection to SMTP server has timed out:
"Sending of message failed.
The message could not be sent because the connection to SMTP server smtp.lineone.net timed out. Try again or contact your network administrator."
I have looked at many different possible solutions and tried them, but nothing seems to be working. I have tried several different ports, failed to send in Safe Mode with Networking and Thunderbird safe mode without add-ons and tried many different settings. I have ensured that the my settings on Thunderbird match the settings that my ISP recommends. My anti-virus software is not affecting it either. Maybe there is something I am missing but I would really appreciate any suggestions!
Here is some general info:
Mail provider: lineone
ISP: BT
Anti-virus software: AVG
OS: Windows Vista
Thunderbird version: 31.5.0

Hello @shredo,
Firstly, I would suggest reading this support article: https://support.mozilla.org/en-US/kb/cannot-send-messages
If that doesn't help, try some of these things (not sorted in any particular order):
*Test your connection in another network. There might just be some blocked ports in your router or conflict of some sort.
* Test your smtp settings in another email client (to ensure that they actually work). If it doesn't work, there might be some missmatch with the settings (even though you have ensured that they match), or some restriction by your router or something.
* Apparently, compacting your thunderbird folders might help with this issue (something to do with too many "deleted", that are still there) - http://kb.mozillazine.org/Thunderbird_:_Tips_:_Compacting_Folders
I hope this helps.

Cannot send emails on Yahoo mail. It works okay with Safari. I set default to Yahoo but still cannot send

Use MAC. Cannot send emails through Yahoo mail through Firefox but can send through Safari.
Also issue with Facebook. Using Firefox cannot sign out of account. Can sign out when using Safari.

Which security software (firewall, anti-virus) do you have?
Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.
Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Why does it say smtp.o2.co.uk (Offline) how do I get it online as I cannot send email

I am using O2 as my provider and am receiving email effectively but of recent cannot send email with two of my servers (tiscali and O2 ) having a note beside the server name in brackets saying (offline) - how do I change this?
I have taking my 3 email accounts offline and online again several times but to no avail vis the facility to do so under the toolbar - mailbox.
My gmail is the only one without this note and it is working.
Help - I know it is probably something simple but I am failing to spot it.

See under "Mail Connection Doctor shows one or more red dots" on this page:
Mail: Troubleshooting sending & receiving email messages

Cannot send email from my IPad Air

I suddenly cannot send email from my IPad Air. Keep getting message that my email recipient
was rejected by the server because it does not allow relaying. Don't understand what this means as I have been able to send email before.

Paula, in most cases this message appears when you are sending email from a ISP server not in the pop settings and SMTP settings in your email program.
In example if I send out email from my iPad I must be on my own isp's server to send. I have roadrunner but if I send email out using say Verizon's email server I will get a reject notice.
You did not say what email program you are using but if it is hotmail or yahoo or your isp's email in two of these email accounts there are stand alone apps which work much better than the stock email program on the phone.
If you are using road runner or another ISP email you must get the proper Pop3 (incoming) server settings and SMTP (send) settings from your ISP
You can then just go into the Settings-Mail, Contacts and Calendar section and click on the email account and change to the proper settings from your ISP.
You could delete as you were told but why bother when only the sending and receiving settings need to be entered.
If the settings are correct, on an iPhone it tests the settings. If correct send an email. If incorrect you will need the proper settings from your ISP.
It is actually very easy to do.
Hotmail is not an option on my iPad air | Apple Support Communities
Problems with POP email accounts set up on iPad... | Apple Support Communities
Good Luck

TS3276 I can receive emails, but I cannot send emails. This just started happening. I have an iPhone and I can send emails from my phone fine. It's just not working on my Macbook. Every time I try to send an email it goes straight to my outbox. Can anyone

I can receive emails, but I cannot send emails. This just started happening. I have an iPhone and I can send emails from my phone fine. It's just not working on my Macbook. Every time I try to send an email it goes straight to my outbox. Can anyone help?

Thank you for heading me in the right direction. I reset my Mail account for Outgoing Mail Server to outbound.att.net:(customer ID)@att.net (instead of smtp.att.yahoo.com, per Apple's online troubleshooting information). I'm not sure what "(Offline)" means when it appears at the end of my Outgoing Mail Server (SMTP)?? In the Advanced box I clicked on "Use custom port: 465" and checked "Use Secure Sockets Layer." Authentication: Password; I have correct User Name and Password put in. After doing all this, when I try to send emails again today, they go directly to the Outbox and sit there.
What's curious is that my first sent email this morning did go out using the Outgoing Mail Server, smtp.att.yahoo.com: (customer ID)@att.net(Offline) but subsequent emails I tried to send with this server were rejected with the message: "Cannot send message using the server smtp.att.yahoo.com (etc.). The SMTP server doesn't support TLS(SSL) on port 587. Verify your account settings and try again." That's when I tried resetting my Outgoing Mail Server to outbound.att.net (etc.), as mentioned above, and was unsuccessful in sending out any further emails. I guess my next step is to contact my email service provider, AT&T, and see if they can help me. Thanks, again, for taking the time to respond and for giving me your input! Much appreciated!

After update, cannot send email via any accounts! Please help!

First of all, thank you for reading my thread.
After updating few days ago, I cannot send any email via any acounts. I have .mac email and yahoo email. But I still can receive emails. I have checked message borad, it said "Some members experienced difficulty sending .Mac Mail via computer email applications from 3:30 am to 6 am Pacific Time. Normal service has been restored." But mine hasn't!!! It has been almost a week!!
The erro message says "cannot send email using this mail server, please choose one of the following server and retry again"
My english is not very good, I hope you understand my question and any help would be appreciated, thank you again.

Thank you very much for your reply!
This is what I got:
PING smtp.mac.com (17.250.248.45): 56 data bytes
--- smtp.mac.com ping statistics ---
10 packets transmitted, 0 packets received, 100% packet loss
PING mail.mac.com (17.250.248.152): 56 data bytes
--- mail.mac.com ping statistics ---
10 packets transmitted, 0 packets received, 100% packet loss
It seems the problem is the server, but it has been many days, I don't think apple haven't had notice this.
What should I do next?

Cannot send emails

Using win 7 64bit
I am away from home for 2/3 weeks. Son has Orange BB and I am able to receive emails using my BT/Yahoo account via Outlook. I cannot send emails of any size. I would prefer not to send on Yahoo at this time.
a:   would it be a port issue?
b:   if so how would I change it.
Many thanks

maryalex wrote:
Using win 7 64bit
I am away from home for 2/3 weeks. Son has Orange BB and I am able to receive emails using my BT/Yahoo account via Outlook. I cannot send emails of any size. I would prefer not to send on Yahoo at this time.
a:   would it be a port issue?
b:   if so how would I change it.
Many thanks
Hi. Welcome to the forums.
You are normally unable to send emails in the usual manner (e.g. from Outlook), because you are using an Orange connection. You may be able to alter the smtp server to use the orange one, but you may still not be able to send emails because of a non Orange email address. Even if this did work, you then need to alter the settings in Outlook again on your return.
Frankly your best option is to use BTyahoo! mail (i.e. webmail).
http://www.andyweb.co.uk/shortcuts
http://www.andyweb.co.uk/pictures

Since Sept 15, 2013 I cannot send emails, but I can send them

I am on a Norwegian cargo ship off the coast of Norway. It has Wi-Fi, but I cannot send emails using my iPad. I understand that Verizon has had big problems recently. I cannot phone Verizon for advice, and if the problem is Verizon's fault, I do not want to change my settings. Can anyone advise me how to fix the problem? Very frustrating and I have not been able to reach technical support using my Safari browser.
Sincerely, W. E. Howard

viafax999 wrote:
Billhoward wrote:
I am on a Norwegian cargo ship off the coast of Norway. It has Wi-Fi, but I cannot send emails using my iPad. I understand that Verizon has had big problems recently. I cannot phone Verizon for advice, and if the problem is Verizon's fault, I do not want to change my settings. Can anyone advise me how to fix the problem? Very frustrating and I have not been able to reach technical support using my Safari browser.
Sincerely, W. E. Howard
Not sure where the previous poster's setting come from but certainly are different to what I use also I have to ssume you are using some form of mail client as using web mail should be no different wherver you are in the world.
Incoming server - incoming.verizon.net
outgoing server - outgoing.verizon.net
login information - your userid and password for your email account
More settings
outgoing server - outgoing server (smtp) check requires authentication
use same settings as incoming mail server for security
Advanced - incoming server (pop3) port 110
outgoing server (smtp) port 587
I would guess that your issue is probably the outgoing server port. If you have it set to 25 it will work when you are connected to a verizon network otherwise the mail will get rejected for reason relaying.
EDIT
Ah I see where previous poster got his setting, they are on the page he referenced, interesting that it mentions DSL on there. I am a FIOS user. Can't believe there are any difference in mail setting between FIOS and DSL but maybe,
I took my mail setting out of my Outlook email client properties and they have been working fine for years.
As to changing setting you need to bear in mind. Settings that are used on devices that are not attached to Verizon's network WILL work when the device ias attached to the VZ network.
The reverse is not necessarily true.
The settings mentioned by you are the very old settings. They were changed at least a couple years ago. The latest ones are as mentioned by Jumpin68ny for VERIZON email (DSL AND FIOS included) where a third party such as Yahoo is not used.
Mail server settings
Incoming mail server (POP3): pop.verizon.net
Incoming Server Port Numbers: 995
Outgoing mail server (SMTP): smtp.verizon.net
Outgoing Server Port Numbers: 465 Why is this important?
Your Verizon Online user name
Your Verizon Online password
Make sure "This server requires a secure connection (SSL)" is checked.
Also make sure when using these SSL servers that the password is normal (in the clear).
See http://verizon.com/emailsettings

I receive emails on my ipad but cannot send emails. any ideas?

i receive emails on my ipad2 but cannot send emails. any ideas? lindafromaz

Just a correction of Radiation Mac message:
You apparently Do have an Incoming POP or IMAP server set up (SMTP being only to send emails, not to receive).
Can you describe the settings you entered?
- What type of mail account (Gmail, Yahoo, Pop, ...)
- Are all the info properly filled (you can share them, but make sure to remove email/login/password for security)
- Is your email provider requiring a secure connection to the SMTP? Did you configure it properly?

Cannot send email from ipad?

I can receive, but cannot send emails from my iPad. Always get message that I have wrong user name or password.

Then make sure that the settings are correct in your email account.
Check the outgoing mail server setting. Make sure that your username and password are in there.
Settings>Mail, Contacts, Calendars>Your email account>Account>Outgoing mail server - tap the server name next to SMTP and check in the primary server and make sure your username and password are entered and correct - even if it says that the password is optional.

"Cannot send email from this device"?

I recently purchased the Easy Release App from the ITunes store and when I try to email the release to my email address it says "Cannot send email from this device". Is it the app that is preventing the sending or is it something to do with the iPod? I've tried sending an email from the iPod to see and it is sent fine from the iPod but the app still won't send from the iPod.
Has this ever happened to someone else? Do I have to change settings on my iPod?
I have the IPod 4th generation if that helps

I had the same problem. You have to go into Settings in your ipod touch, scroll down and find "mail, contacts, calendars." Set up your email in there. It will give you a list I.e. yahoo, hotmail, gmail. After you've dont that you'll be able to sent the model release.

Cannot send email from pop account when in 3G, will send in WIFI

I cannot send email from pop account when in 3G, will send in WIFI.
I thought it was the SMTP server first.. but when i config my WIFI, suddenly the emails that i tried to send, left my outbox and sent.
Any idea's

The SMTP server you are using with Wi-Fi would be the outgoing server of your internet service provider... this is likely why that's working.
SMTP servers specific to a ISP would not work on the 3G network. You would probably need another SMTP server. One from your cell provider?

Cannot send email SMTP to yahoo business email

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