fortimail default-slow

[Waleed_Wardany]

since 2 days some emails stays in default-slow Queue for a lot of time after that it goes out , and the reason messages as follow Deferred: Connection timed out with XXXXXXXXXX or Deferred: 421-4.7.0 [our server ip 4] Our system has detected an unusual rate of

[emnoc]

In my experience, this means they ( the server that gives that message ) is giving you a soft bounce due to any of the following; 1: you excced their session limits 2: grey listing ( specially if it a new listed ip_address and numerous address ) 3: you exceed max mail attachments or recipients 4: or you didn' t complete the EHLO and the connection within a set time ken

[Waleed_Wardany]

at first thank u for ur help but what can i do ?

[Bromont_FTNT]

Is that Gmail servers giving you that error? How much outgoing mail do you have? Make sure you aren' t spamming outbound.

[Waleed_Wardany]

yes gmail server giving that error and some other servers ..........Note :since one week our server taken as spam but we solve this problem and we remove server from blacklists but still mail stays some times in Queue but it is alot of time