550 5.3.4 SMTPSEND.OverAdvertisedSize; message size

[madferret]

Help
I am getting the following NDR when sending email greater than 10Mb out of
the organsisation
550 5.3.4 SMTPSEND.OverAdvertisedSize; message size exceeds fixed maximum
size ##

I have checked the following
******************** Get-transportconfig

ClearCategories : True
GenerateCopyOfDSNFor : {5.1.1, 5.
InternalSMTPServers : {}
JournalingReportNdrTo : <>
MaxDumpsterSizePerStorageGroup : 18MB
MaxDumpsterTime : 7.00:00:00
MaxReceiveSize : 30MB
MaxRecipientEnvelopeLimit : 5000
MaxSendSize : 30MB
TLSReceiveDomainSecureList : {}
TLSSendDomainSecureList : {}
VerifySecureSubmitEnabled : False
VoicemailJournalingEnabled : True
Xexch50Enabled : True

******************** GEt-sendconnector

AddressSpaces : {SMTP:*;1}
AuthenticationCredential :
Comment :
ConnectedDomains : {}
ConnectionInactivityTimeOut : 00:10:00
DNSRoutingEnabled : False
DomainSecureEnabled : False
Enabled : True
ForceHELO : False
Fqdn :
HomeMTA : Microsoft MTA
HomeMtaServerId : xxxxxxx
Identity : Name of connector
IgnoreSTARTTLS : False
IsScopedConnector : False
IsSmtpConnector : True
LinkedReceiveConnector :
MaxMessageSize : 30MB
Name : xxxxxxx
Port : 25
ProtocolLoggingLevel : None
RequireTLS : False
SmartHostAuthMechanism : None
SmartHosts : {[xxx.xxx.xxx.xxx]}
SmartHostsString : [xxx.xxx.xxx.xxx]
SourceIPAddress : 0.0.0.0
SourceRoutingGroup : Exchange Routing Group (DWBGZMFD01QNBJR)
SourceTransportServers : {xxxxx}
UseExternalDNSServersEnabled : False

************************get-receiveconnector

MaxInboundConnection : 5000
MaxInboundConnectionPerSource : unlimited
MaxInboundConnectionPercentagePerSource : 100
MaxHeaderSize : 64KB
MaxHopCount : 30
MaxLocalHopCount : 8
MaxLogonFailures : 3
MaxMessageSize : 20MB
MaxProtocolErrors : 5
MaxRecipientsPerMessage : 5000

MessageRateLimit : 600
MaxInboundConnection : 5000
MaxInboundConnectionPerSource : 100
MaxInboundConnectionPercentagePerSource : 2
MaxHeaderSize : 64KB
MaxHopCount : 30
MaxLocalHopCount : 8
MaxLogonFailures : 3
MaxMessageSize : 20MB
MaxProtocolErrors : 5
MaxRecipientsPerMessage : 200

I have also checked

delivContLength This is the incoming message size limit that corresponds
to the MaxReceiveSize parameter in the Set-TransportConfig cmdlet.

submissionContLength This is the receiving message size limit that
corresponds to the MaxSendSize parameter in the Set-TransportConfig cmdlet.

All are correct
Is there anything else I can check.
Cheers

[Ed Crowley [MVP]]

Does your Exchange server connect directly to the Internet or might there be
a firewall or routing server that might be enforcing this?
--
Ed Crowley MVP
"There are seldom good technological solutions to behavioral problems."
.

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