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Restart the Transport Service on the server and see if that resolves the problem. <br />
You could also consider restarting the smart host if you can, as it is rejecting the emails. <br />
<br />
Simon.
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Restart the Transport Service on the server and see if that resolves the problem.
You could also consider restarting the smart host if you can, as it is rejecting the emails.

Simon.

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Hi Simon<br />
<br />
I did that already, I think the fortimail device might have a settings somewhere for the amount of allowed emails in a given time that my hub server violated.
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Hi Simon

I did that already, I think the fortimail device might have a settings somewhere for the amount of allowed emails in a given time that my hub server violated.

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I have a problem with my email server, it is forwarding emails to a smarthost (fortimail 200D). I had problems with my mailbox server yesterday and when it came back online the smart host queue is stuck at retry and emails are not going out but we are receiving emails.
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I have a problem with my email server, it is forwarding emails to a smarthost (fortimail 200D). I had problems with my mailbox server yesterday and when it came back online the smart host queue is stuck at retry and emails are not going out but we are receiving emails.

421 4.7.0 too many errors;clossing connection

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.