Hello...Need to set permisson to a mailbox for sending messages Exchange 2007 sp1[PS] C:\Documents and Settings\admin>get-receiveconnector | select identity,maxmessagesizeIdentity MaxMessageSize-------- --------------MERCURIO\Default MERCURIO 15MBMERCURIO\Client MERCURIO 15MB[PS] C:\Documents and Settings\admin>Get-Mailbox user | format-list....MaxSendSize : 20240KBMaxReceiveSize : 20240KBand get this error#550 5.3.4 SMTPSEND.OverAdvertisedSize; message size exceeds fixed maximum size ##I dont found where is the problem. Thanks

Hi, If your user is using MAPI, the user is not using the receive connectors. Try to see what message size a get-transportconfig tells you Leif

I agree with Leif you need to check limit at various level Take a look here for more detailExchange 2007 - Message SizeLimits

okI read it, and make some changes.. Set-TransportConfig -MaxReceiveSize 15MB -MaxSendSize 15MB Set-SendConnector salida mails -MaxMessageSize 15mb Set-ReceiveConnector default my server -MaxMessageSize 15mb Set-TransportServer my server - ExternalDsnMaxMessageAttachSize 15MB - InternalDsnMaxMessageAttachSize 15MB Set-Mailbox -identity user -maxsendsize 5mb -maxreceivesize 10mbbut still having te same problemsinternal my.domain.com #550 5.3.4 SMTPSEND.OverAdvertisedSize; message size exceeds fixed maximum size ##from gmailPERM_FAILURE: Gmail tried to deliver your message, but it was rejected by the recipient domain. The error that the other server returned was: 552 552 mydomain.com: your message size exceeds maximum inbound size of 10240 kilobytes. We recommend contacting the other email provider for further information about the cause of this error. Thanks for your continued support. (state 17)thanks for the answers