Message Submission Rate

Message Submission Rate

Products

Windows

Windows Server

System Center

Microsoft Edge

Office

Office 365

Exchange Server

SQL Server

SharePoint Products

Skype for Business

See all products »

Resources

Channel 9 Video

Evaluation Center

Learning Resources

Microsoft Tech Companion App

Microsoft Technical Communities

Microsoft Virtual Academy

Script Center

Server and Tools Blogs

TechNet Blogs

TechNet Flash Newsletter

TechNet Gallery

TechNet Library

TechNet Magazine

TechNet Wiki

Windows Sysinternals

Virtual Labs

Solutions

Networking

Cloud and Datacenter

Security

Virtualization

Updates

Service Packs

Security Bulletins

Windows Update

Trials

Windows Server 2016

System Center 2016

Windows 10 Enterprise

SQL Server 2016

See all trials »

Related Sites

Microsoft Download Center

Microsoft Evaluation Center

Drivers

Windows Sysinternals

TechNet Gallery

Training

Expert-led, virtual classes

Training Catalog

Class Locator

Microsoft Virtual Academy

Free Windows Server 2012 courses

Free Windows 8 courses

SQL Server training

Microsoft Official Courses On-Demand

Certifications

Certification overview

Special offers

MCSE Cloud Platform and Infrastructure

MCSE: Mobility

MCSE: Data Management and Analytics

MCSE Productivity

Other resources

Microsoft Events

Exam Replay

Born To Learn blog

Find technical communities in your area

Azure training

Official Practice Tests

Support options

For business

For developers

For IT professionals

For technical support

Support offerings

More support

Microsoft Premier Online

TechNet Forums

MSDN Forums

Security Bulletins & Advisories

Not an IT pro?

Microsoft Customer Support

Microsoft Community Forums

Edited by
WildPacket
Thursday, April 28, 2016 5:57 PM

Proposed as answer by
jim-xu
Tuesday, May 3, 2016 9:30 AM

Marked as answer by
jim-xu
Friday, May 6, 2016 2:48 AM

Edited by
WildPacket
Friday, April 29, 2016 12:47 PM

Proposed as answer by
jim-xu
Tuesday, May 3, 2016 9:30 AM

Marked as answer by
jim-xu
Friday, May 6, 2016 2:48 AM

© 2022 Microsoft. All rights reserved.
I have this little app running on a server it sends emails out to about 60
to 80 people daily. I pointed to use the new hardware load balancer VIP and since then I am noticing the following in the applications log file:
Unable To Sent Mail :
user@domain.com . Error: Service not available, closing transmission channel. The server response was: 4.4.2 Message submission rate for this client has exceeded the configured limit.
The receive connectors setup to use this new Load Balancers IP has
UNLIMTED Message Rate Limit when I run this command:
Get-ReceiveConnector | ft Name,MessageRateLimit
I am wondering may be the sending application is using other default receive connectors to send (some of them have Limit of 5) ----
so I searched ALL the SMTP receive logs on the CAS servers and mailbox servers but I don’t find nothing referencing to

The Unable To Sent Mail :
user@domain.com . Error: Service not available, closing transmission channel. The server response was: 4.4.2 Message submission rate for this client has exceeded the configured limit.
All the receive connectors on all servers are set for verbose logging.
I have also restarted the transport services on all cas and mbx servers numerous times.
Note: If I point this app server back to the WNLB IP it works fine.
I don't know how many messages you are sending, but typically You need to adjust the set-transportservice
MaxConnectionRatePerMinute on each mbx server as well. The default is 1200. Maybe set higher if you are sending through a lot of messages.

There should be something in the event logs on the servers when the rate is exceeded.
Is the message " Unable To Sent Mail " generated by the application? I ask because it's grammatically incorrect so it's unlikely to have come from the Exchange server.
You can enable SMTP protocol logging on the receive connectors (which it sounds like you did), then look at the logs to see which receive connector is being selected to handle the messages. That message won't appear in the logs in its entirety; you'll
have to look at the sender, recipient or subject or something that is logged.
Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."
Celebrating 20 years of providing Exchange peer support!
Can you post the result from running this cmdlet?
[PS] C:\>Get-ReceiveConnector | fl Name,MessageRateLimit,MessageRateSource
Creating a new session for implicit remoting of "Get-ReceiveConnector" command...
Name             : Client Frontend CAS01
MessageRateLimit : 5
MessageRateSource : User
Name             : Outbound Proxy Frontend CAS01
MessageRateLimit : Unlimited
MessageRateSource : IPAddress
Name             : Client Frontend CAS02
MessageRateLimit : 5
MessageRateSource : User
Name             : Outbound Proxy Frontend CAS02
MessageRateLimit : Unlimited
MessageRateSource : IPAddress

Name             : Client Frontend CAS03
MessageRateLimit : 5
MessageRateSource : User
Name             : Outbound Proxy Frontend CAS03
MessageRateLimit : Unlimited
MessageRateSource : IPAddress

Name             : Client Proxy MBX02
MessageRateLimit : 5
MessageRateSource : User
Name             : Default MBX02
MessageRateLimit : Unlimited
MessageRateSource : IPAddress
Name             : Client Proxy MBX01
MessageRateLimit : 5
MessageRateSource : User
Name             : Default MBX01
MessageRateLimit : Unlimited
MessageRateSource : IPAddress
Name             : Default Frontend CAS02
MessageRateLimit : Unlimited
MessageRateSource : IPAddress
Name             : Default Frontend CAS03
MessageRateLimit : Unlimited
MessageRateSource : IPAddress
Name             : Default Frontend CAS01
MessageRateLimit : Unlimited
MessageRateSource : IPAddress
Name             : Relay-CAS01
MessageRateLimit : Unlimited
MessageRateSource : IPAddress
Name             : Relay-CAS03
MessageRateLimit : Unlimited
MessageRateSource : IPAddress

Name             : Relay-CAS02
MessageRateLimit : Unlimited
MessageRateSource : IPAddress
The sending application is pointed to the relay.domain.com/VIP which should use any of the three

relay-cas01, relay-cas02, relay-cas03.
I have searched the logs of all the 3 cas servers and 2 mbx servers with sender, recipient, subject line, error code nothing comes up, I will give it a shot again today.
yes, " Unable To Sent Mail " is generated by the application. This is from the application server logs
I don't know how many messages you are sending, but typically You need to adjust the set-transportservice
MaxConnectionRatePerMinute on each mbx server as well. The default is 1200. Maybe set higher if you are sending through a lot of messages.

There should be something in the event logs on the servers when the rate is exceeded.

This person is a verified professional.

Verify your account
to enable IT peers to see that you are a professional.

This person is a verified professional.

Verify your account
to enable IT peers to see that you are a professional.

About

Contact

Support

Press / Media

Careers

SpiceWorld

Blog

Sitemap

Privacy Policy

Terms of Use

Guidelines

Accessibility Statement

Do Not Sell My Personal Information

© Copyright 2006 - 2022 Spiceworks Inc.

Keep getting a

4.4.2 Message submission rate for this client has exceeded the configured limit

even though the MaxRecipientsPerMessage is 1000 and the MessageRateLimit is unlimited. This is on the 'Client Frontend MAIL01' Receive Connector.
I restarted the Exchange Transport service. Is there anything else I need to cycle before maybe bouncing the server? Or maybe somewhere else I need to make a change? I also did the Organization Wide Transport settings.
You've noted MAIL01 in the above, do you have multiple exchange servers, is it this one stopping the emails, did you apply the rule to all nodes?

Also some message traces, do you see a proxy receive connector in it? Check the limit on that proxy connector.

Is the error you see in the client or queued on exchange, if the latter remove them from the queue and try to send them again,
Check your server's resources and queue depth.
I generally see issues like this when the free Disk space is below the minimum thresholds and the server will just queue emails until they expire or the resource issue is resolved.
According to
the EnhancedStatus Code “ 4.4.2 Message submission rate ” and the official
documents “ Messagerate limits and throttling ” & “ Messagesize limits in Exchange Server ”, the issue could be caused by the Message
Submission Rate and Message size limit .
Therefore,
to troubleshoot the delivery issue, you could check other submission
configurations(Except the configurations “ MaxRecipientsPerMessage ” and “ MessageRateLimit ”
which you have checked):
TransportServer
and MailboxTransportService ( MaxConcurrentMailboxSubmission ):
The MaxConcurrentMailboxSubmission
value is the maximum number of submission threads that the transport
service can have open at the same time to send messages from mailboxes. You
could try to modify to a larger number(From 1 through 256).
Mailbox :
MaxSendSize(The valid input range for this parameter is 0 to 2147483647
bytes or unlimited) and RecipientLimits
SendConnector :
MaxMessageSize(The valid input range for this parameter is 0 to 2147483647
bytes or unlimited)
TransportConfig : MaxSendSize(The valid input
range for this parameter is 0 to 2147483647 bytes or unlimited), MaxRecipientEnvelopelimit
– Maximum number of recipients in a message(The valid input range for this
parameter is 0 to 2147483647 bytes or unlimited)

This topic has been locked by an administrator and is no longer open for commenting.

To continue this discussion, please ask a new question .

I can't seem to find where someone has asked this exact questions so here it goes.I'm new to IT and have been basically thrown into a system admin type role. (labor shortage)This organization has been using pop3 for years. They have email accounts that ar...
Hey All,Could use some help here please.I have a hybrid environment O365. I need to change the name of a resource (conference room) but I am having difficulties.What I have tried:-I logged into my O365 "Exchange Admin Center" portal, selected the resource...
Your daily dose of tech news, in brief.

On this day back in 2008, Google and T-Mobile released the world's first Android-based smartphone, the HTC Dream. While it did not dominate the market, it was Google's first step and helped bring them where t...

Today in History: 1986 - Computer Code Copyright Upheld
The US District Court for the Northern District of California rules that computer code is protected under copyright law. The ruling stems from the case NEC Corp. v. Intel Corp, which was basical...

Might make for a good Snap! feature...Atlassian Bitbucket Server & Data Center are affected by a pretty serious exploit in the blog article below. Patch as soon as possible. Comment per the article: "The advisory reveals a command injection vulnerabil...

Sign up or log in to customize your list.

more stack exchange communities

company blog

Stack Overflow for Teams
– Start collaborating and sharing organizational knowledge.

Create a free Team
Why Teams?

Asked
10 years, 8 months ago

Modified
1 year, 4 months ago

14.9k 48 48 gold badges 115 115 silver badges 176 176 bronze badges

Sorted by:

Reset to default

Highest score (default)

Trending (recent votes count more)

Date modified (newest first)

Date created (oldest first)

1,123 8 8 silver badges 24 24 bronze badges

1,052 10 10 silver badges 22 22 bronze badges

1,128 15 15 silver badges 11 11 bronze badges

Not the answer you're looking for? Browse other questions tagged c# .net exchange-server or ask your own question .

Stack Overflow

Questions
Help

Products

Teams
Advertising
Collectives
Talent

Company

About
Press
Work Here
Legal
Privacy Policy
Terms of Service
Contact Us
Cookie Settings
Cookie Policy

Stack Exchange Network

Technology

Culture & recreation

Life & arts

Science

Professional

Business

API

Data

Accept all cookies

Customize settings

Find centralized, trusted content and collaborate around the technologies you use most.
Connect and share knowledge within a single location that is structured and easy to search.
I have a for loop which calls some code sending emails. I get the following run-time error:
Service not available, closing transmission channel. The server
response was: 4.4.2 Message submission rate for this client has
exceeded the configured limit
After googling around it ap
Stocking Milf Xxx
First Face Fuck
Foot Fetish Giantess

Message Submission Rate

Report Page