If you’re logged in to a network using VPN, also make sure that you entered your VPN password correctly. Then verify the information is entered correctly in Mail account preferences. If you’re still having problems, contact your email account provider to verify your user name, password, incoming mail server, and other required information. When you change the password for your email account in our My Account control panel. Contact the appropriate person for information. Check for problems logging in to email accounts or with the incoming mail server, or with firewall software blocking network traffic.Ĭheck whether you’re affected by another firewall, such as software installed separately from macOS or built into an internet sharing router, or administered by your email account provider. Try quitting Mail, then opening it again.Ĭhoose Window > Connection Doctor, then follow any instructions in the Details column. If you’re missing emails from a specific person or group, check whether you blocked messages from them. Try sorting messages in the message list by Date or another attribute, or searching for messages, to verify if you received them.Ĭheck whether your account is offline or disabled (inactive). See View Mail activity.Ĭheck if you’re using filters in the message list that are preventing expected messages from being shown. Check whether Mail is retrieving a large message or a message with large attachments.