Birds on the 15th floor
Seven years ago (September 12, 2017)
46972 Browse
14 Comments
Collection
Recently, we received feedback from customers that the email sending component cannot be used because AliCloud has blocked port 25 by default, resulting in email sending failure. You can unseal it in the following way. Problem description Unable to use TCP 25 port to connect to external address. For example, running Telnet smtp. * * *. com 25 fails. Cause The outgoing direction of TCP 25 port is blocked by default. Solution Request Unsealing TCP
