# Common errors & How to fix

- [Chat bubble doesn't appear](/pingme-document/common-errors-and-how-to-fix/chat-bubble-doesnt-appear.md)
- [Whitelist domain](/pingme-document/common-errors-and-how-to-fix/whitelist-domain.md)
- [Automated response](/pingme-document/common-errors-and-how-to-fix/automated-response.md)
- [Remove welcome message](/pingme-document/common-errors-and-how-to-fix/remove-welcome-message.md)
- [Remove Facebook chat & leftover code](/pingme-document/common-errors-and-how-to-fix/remove-facebook-chat-and-leftover-code.md)
- [Email configuration](/pingme-document/common-errors-and-how-to-fix/email-configuration.md): How to connect email via SMTP
- [Gmail](/pingme-document/common-errors-and-how-to-fix/email-configuration/gmail.md)
- [Yahoo Mail](/pingme-document/common-errors-and-how-to-fix/email-configuration/yahoo-mail.md)
- [365 Mail](/pingme-document/common-errors-and-how-to-fix/email-configuration/365-mail.md)
- [Amazon SES Mail](/pingme-document/common-errors-and-how-to-fix/email-configuration/amazon-ses-mail.md)
- [Zoho Mail](/pingme-document/common-errors-and-how-to-fix/email-configuration/zoho-mail.md)