Thank you @raf. We were using the certs from a commercial CA, not the
free one.
On 2021/8/15 8:05 上午, raf wrote:
On Sun, Aug 15, 2021 at 09:37:17AM +1000, raf wrote:
I recommend using a CA-approved certificate like
LetsEncrypt just because Postfix will use the same
certificate for submission
so for server to server use, we should deploy starttls on port 25?
thanks
Lauren
On 2021/8/15 7:04 上午, raf wrote:
So "smtps" is dead. Long live "submissions".
But it isn't for server-to-server use.
Hi,
I have installed postfix on the ubuntu system, SSL port is enabled.
How can I force the other mail systems such as gmail to send messages to
my postfix via only SSL port?
Thanks.
