The operating system Ubuntu 18.04.5 LTS installed virtualmin . everything is fine . Hosted 2 sites by adding virtual server. The postfix was installed along with virtualmin . I can send mail internally (between the 2 hosted sites) and can receive mail from outside. All mail send to outside domains are in que. I have googled many articles realted to postfix and tried many buit still the issue was not sorted.
the status of mail in webmin is as below
|3FED07E1C8 |2020/11/16 10:42:28 AM |email@example.com |firstname.lastname@example.org |977 bytes |connect to alt4.gmail-smtp-in.l.google.com[18.104.22.168]:25: Connection timed out|
Can anyone can support or help