When sending or receiving an email with Outlook you may receive an error similar to:

Receiving' reported error (0x800CCC90): 'Your incoming (POP3) e-mail server has reported an internal error. If you continue to receive this message, contact your server administrator or Internet service provider(ISP)


The connection to the server has failed. Account: 'pop3.****.net', Server: 'pop3.****.net', Protocol: POP3, Port: 110, Secure(SSL): No, Socket Error: 10061, Error Number: 0x800CCC0E


Sending' reported error (0x800CCC92) :'Your e-mail server rejected your login. Verify your user name and password for this account in Account Settings.'


This is a vague error message with a few different possible causes.

  1. The most common cause is using the wrong username and password. Make sure in Outlook you have it set with your full email address as the username.  For the password, it's the password for that individual email account. Once the user information's confirmed, try sending a new email and see if the error is gone.
  2. Sometimes this is caused by the Outgoing Server using the wrong port number. Please read our article on correcting sending email errors to make sure the right port is used. If this is a recent problem, it's possible your ISP blocked the port you're using.  This can be corrected by simply changing the port as the article above recommends.
  3. This error also occurs if a recently updated firewall or virus protector is blocking the email.  To test this, temporarily lower your security settings and attempt to send an email.  If you can, then the anti-virus is the likely issue.

If none of these work, our support team can look into the issue further.  If you are able to, forward a screenshot of the error you're seeing to This email address is being protected from spambots. You need JavaScript enabled to view it. . Remember that you can always log into webmail to continue checking and sending email as well.

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n/a Points
2015-07-09 9:39 am

I tried all the above solution for the error 0x800ccc90. I till have the problem of recieving email and its only for the emails that are larger in size like more than 1MB and its for my yahoo account.

10,840 Points
2015-07-09 6:45 pm
Hello Salahuddin,

Thank you for contacting. Have you tried on a different network? For example, if you are on a home network, try to transmit from a school, coffee shop, or library. This will help rule out network limitations.

If you were hosted on our servers, the next step is reviewing your mail logs for additional errors/issues. Unfortunately, since your email is with yahoo, we do not have access these logs. Have you tried to contact Yahoo support regarding this issue?

Thank you,
n/a Points
2015-08-27 2:07 pm

I just recently put my Yahoo mail account on my Outlook and now i get a receiving error 0x800CCC90. I have restarted both my computer and my modem and I am still getting this error. Is there anything else i can try. I have double checked my passwords and login email and everything is correct. Any help is greatly appreciated.

10,840 Points
2015-08-27 3:51 pm
Hello Sheanna,

Thank you for contacting us. Check your firewall/antivirus to ensure there is not a block going on there.

Also, if yahoo has other setting options, try them. For example, if they offer offer multiple port settings, try one of the other ones.

Thank you,

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