I am using windows 10 Office 365 Outlook. I can receive emails, but - Microsoft Community

using windows 10 office 365 outlook.  can receive emails, cannot send.  error message (0x80042109):outlook cannot connect outgoing  (smtp) email server..  if continue receive message, contact server administrator or internet service provider (isp). 

hello harry,

the error message received might have occurred due problems settings configuration or network issues. efficiently assist you, ask few questions:

• could tell if there changes made on computer prior issue?
• have tried check email server settings of microsoft outlook?
• are trying send email file attachment?
• to avoid repetition, tell troubleshooting steps have done far?

for troubleshooting purposes, recommend follow methods provided in article. article describes common methods troubleshoot problems may experience when receive or send email in microsoft outlook.

update on results can further help.

Office / Outlook / Windows 10 / Office 365 Home