Hello.
You can try adding to your main.conf:
tcp_windowsize=65535
See also:
https://www.postfix.org/postconf.5.html
That can help fixing broken window sizes because of a firewall.
Thanks
Matthew
On 4/30/2023 12:35 AM, Kolusion K via Postfix-users wrote:
Hello again
My e-mail server is able to deliver e-mail to some hosts but will time
out when attempting to deliver to other hosts. What could be causing
this problem?
Thanks
Sincerely,
Kolusion
_______________________________________________
Postfix-users mailing list --postfix-users@postfix.org
To unsubscribe send an email topostfix-users-le...@postfix.org
_______________________________________________
Postfix-users mailing list -- postfix-users@postfix.org
To unsubscribe send an email to postfix-users-le...@postfix.org
