This is happening only toward a specified recipeint.
Whenever i send a mail with my fortimail in gatweay mode the recipient server is always in connection timeout. If i send the same mail using postifix or another mail relay it is sent.
This is the error message : " timeout waiting for input from mail.xxxxxxx.com. during client greeting"
Their system administrator told me to change this, but i can' t find the fortimail option where to change it:
"
http://www.ietf.org/rfc/rfc2821.txt
…â€Based on extensive experience with busy mail-relay hosts, the minimum
per-command timeout values SHOULD be as follows:
Initial 220 Message: 5 minutes
An SMTP client process needs to distinguish between a failed TCP
connection and a delay in receiving the initial 220 greeting
message. Many SMTP servers accept a TCP connection but delay
delivery of the 220 message until their system load permits more
mail to be processed.â€...
"