Reliable Ways to Easily Terminate QuickBooks Cannot Connect to Email Server Issue. If you are finding it difficult to send emails via QuickBooks, you might be facing the QuickBooks cannot connect to email server error. This error can be a result of network connection failure and can get triggered due to some main reasons, like incorrect login credentials or Internet Explorer settings. You can resolve the “couldn't connect to email server” error in QuickBooks by following the resolution steps given in this blog. If the solutions given below seem too technical or complex to undertake, you can call our team of QB professionals at +1.833.802.0002 to get direct help with the email server issues in the app. Common Reasons Why QuickBooks is Unable to Send Emails Due to Network Connection Failure The following main causes and factors might lead to the server connection error while sending email in QuickBooks – 1. There are internet connection issues, and the connection might be weak, unreliable, or unstable in the system while sending emails. 2. Your Internet Explorer settings might be incorrect or misconfigured, and you are not sending emails via QuickBooks by using IE as the browser. 3. There are insufficient Windows admin rights in the system, and the lack of privileges might lead to email server issues. 4. You are unable to log in to the email account due to incorrect or outdated login details. 5. The email server settings might be incorrectly configured, which can lead to server connection issues in the QB. Easy Solutions to Terminate QuickBooks Server Connection Error When Sending an Invoice If your QuickBooks is unable to connect to email server, you can perform the detailed steps given below to tackle the issue – Step 1 – Reset the IE Settings from the Gear Tab of the Internet Window You can rectify the QuickBooks enterprise cannot email invoices because of server error by resetting the Internet Explorer settings. 1. Open IE and go to the Gear icon from the top-right corner to choose Internet Options, followed by going to the Advanced menu. 2. : select Restore Advanced Settings and hit OK, followed by exiting Internet Explorer to try sending emails via QuickBooks again. Step 2 – Review the Webmail Preferences from the Edit Tab of QB Desktop You can fix the email server issues in QB by editing the webmail preferences from the edit menu of the app – 1. Open QuickBooks to choose Preferences from the Edit menu and click on Send Forms from the left side. 2. Choose the Email Account to send the emails from by going to the My Preferences section, followed by hitting Edit and choosing Edit Email Info. 3. Navigate to the SMTP Server Details window and enter the server name & port number to save the settings, followed by trying to send the emails from QuickBooks again. QuickBooks cannot connect to email server error can be easily rectified by using the reliable methods given above. In case these solutions seem unsuccessful in fixing the email server issues, you can call our team of QB technicians at +1.833.802.0002 to get immediate relief from the error.