adrecal
asked on
"451 4.7.500 server busy" from mail.protection.outlook.com
Hello.
I have a ticket on Microsoft about my Symantec SMG (anti-spam) is receiving the "451 4.7.500 server busy" from mail.protection.outlook.co
This question is the same point:
https://www.experts-exchange.com/questions/29071178/mail-protection-outlook-com-rejecting-our-email.html
The Accepted Solution is:
"We were being throttled by Outlook.com addresses. Exchange was trying to send the health check emails outside. Fixed that and now everything goes through fine."
what does "Exchange was trying to send the health check emails outside. Fixed that and now everything goes through fine" mean?
I have a ticket on Microsoft about my Symantec SMG (anti-spam) is receiving the "451 4.7.500 server busy" from mail.protection.outlook.co
This question is the same point:
https://www.experts-exchange.com/questions/29071178/mail-protection-outlook-com-rejecting-our-email.html
The Accepted Solution is:
"We were being throttled by Outlook.com addresses. Exchange was trying to send the health check emails outside. Fixed that and now everything goes through fine."
what does "Exchange was trying to send the health check emails outside. Fixed that and now everything goes through fine" mean?
ASKER
Not solved yet :-(
Same problem, only when try to send email to @hotmail domain
Same problem, only when try to send email to @hotmail domain
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
go to services and see if you have active directory domain and services running.
I do not understand "Exchange was trying to send the health check emails outside. Fixed that and now everything goes through fine" . Exchange and all email server always verify if the email is sent outside, it checks if the email is received...
I hope the author replies to explain his solution...
Regards
Valentina