Cannot send emails

[Fiberbot]

An unknown error has occurred. Subject 'test', Account:
'pop-server.hvc.rr.com', Server: 'smtp-server.hvc.rr.com', Protocol: SMTP,
Server Response: '421 Service not available', Port: 25, Secure(SSL): No,
Server Error: 421, Error Number: 0x800CCC67

This is the error message I get when trying to send emails. Anti virus email
scanning is turned off. Any suggestions are welcome. Thanks

 

[Gary VanderMolen]

Try this:
Make sure you have send authentication enabled.
Go to Tools, Accounts, select that account, Properties, Servers.
Enable the "My server requires authentication" option.

 

[rayb]

I can't send any messages. Get this error message.

The connection to the server has failed. Subject '', Account:
'pop.sbcglobal.yahoo.com', Server: 'smtp.sbcglobal.yahoo.com', Protocol:
SMTP, Port: 25, Secure(SSL): No, Socket Error: 10060, Error Number: 0x800CCC0E

Please help. Thanks.

 

[Gary VanderMolen]

Wrong server name and settings. Use this:

Incoming (POP3) server: pop.att.yahoo.com
Outgoing (SMTP) server: smtp.att.yahoo.com
On the Advanced tab, change the outgoing port to 465, and the incoming
port to 995; then select the SSL option for both.

 

[rayb]

Thank you for helping me. I changed to what you said, and now I can send but
not receive! I'm lost. I get this error now.

Account: 'pop.sbcglobal.yahoo.com', Server: 'pop.att.yahoo.com', Protocol:
POP3, Server Response: '-ERR popgate unknown command', Port: 995,
Secure(SSL): Yes, Server Error: 0x800CCC90, Error Number: 0x800CCC18

Again, thank you for helping.

Ray B.

 

[Gary VanderMolen]

Go to Tools, Accounts, select that mail account, Properties, Servers.
Uncheck the "Log on using Secure Password Authentication" option.

 

[rayb]

Awesome....appears to have fixed it.
Thank you so much.

Ray B.

 

[Gary VanderMolen]

You're very welcome. Thanks for reporting back.

 

[rayb]

Hi,

I am having issues again for some reason. It is as though my settings keep
getting changed. The email has worked great since you helped me, but this
morning I get this message:

The connection to the server has failed. Account: 'pop.sbcglobal.yahoo.com',
Server: 'pop.att.yahoo.com', Protocol: POP3, Port: 995, Secure(SSL): Yes,
Socket Error: 10061, Error Number: 0x800CCC0E

I went back and made sure everything was still the same from the last time,
and it appears to be. Can you please help again?

Thank you,

Ray B.

 

[Gary VanderMolen \(MS MVP\)]

Your settings are correct.
That symptom can be caused by interference from an antivirus
program. Which antivirus are you running?
As a minimum, email scanning in the antivirus should be turned off,
although that may not be sufficient to eliminate all bad effects.
In a worst case scenario, your antivirus may need to be uninstalled.

Email scanning in any antivirus should be disabled, for reasons
explained here:
http://thundercloud.net/infoave/tutorials/email-scanning/index.htm

If no improvement after disabling email scanning, consider upgrading
to Windows Live Mail, because it is less prone to suffering bad effects
from overly intrusive antivirus programs:
http://download.live.com/wlmail