This topic provides troubleshooting solutions for problems you might encounter using Email Delivery.
- If you are encountering TLS errors when attempting to integrate Postfix with Email Delivery, ensure that the following setting is removed from the Postfix
main.cffile, as it has been deprecated:
smtp_use_tls = yes
smtp_tls_security_level = may
Using this setting, the Postfix SMTP server announces STARTTLS support to remote SMTP clients, but does not require that clients use TLS encryption.
smtp_tls_security_level = encrypt
For more information, see Postfix TLS Support.