
Open your email client program (Outlook Express, Outlook, Eudora or Windows Mail). To verify your existing SMTP server settings: Review information for the server change settings as directed by your email account provider. Click Server Settings, click the outgoing Account pop-up menu, then choose Edit SMTP Server List. In the Mail app on your Mac, choose Mail > Preferences, click Accounts, then select an account. If you can receive emails but can not send emails this usually means the authenication required by the outgoing (SMTP) server is not configured.’My outgoing (SMTP) server requires authentication’ is not checked. Most likely there is a communication problem between Outlook and your outgoing mail server, so the email is stuck in Outbox because Outlook can’t connect to your mail server to send it.– check with your email address provider and make sure your mail server settings are up to date. Click the Advanced tab and change the Outgoing server (SMTP) port. Click the Outgoing Server tab and check the My outgoing server (SMTP) requires authentication option. On the Change E-mail Settings window, click More Settings. Select the email account from the list and click Change.
Make sure that you have an exception rule for your SMTP service in your firewall, proxy service or antivirus settings. Maybe you configured your mail client with a wrong outgoing server name: have a look at our list of SMTP and POP providers to double check it, or contact the provider. 19 What is SMTP error while sending mail?.
17 How do I set up an outgoing mail server on a Mac?.15 Why are my emails stuck in my outbox on my Mac?.14 How do I fix Outlook not sending emails?.13 Why are my emails going to outbox and not sending?.11 What is the SMTP setting for Gmail outgoing mail?.8 Where do I find SMTP server settings?.2 How do I reset my outgoing mail server?.1 Why is outgoing mail server not working?.