Mail Sending Problem

Mail Sending Problem

Our SMTP server is changed and we have configured the servicedesk SMTP with new settings. But while try to send mail getting the below message-
 
"sending notification failed"
 
Below is log-
 
[11:43:15:959]|[01-31-2013]|[com.adventnet.servicedesk.utils.ServiceDeskUtil]|[SEVERE]|[37]|: Error code : 18013|
[11:43:15:959]|[01-31-2013]|[com.adventnet.servicedesk.utils.ServiceDeskUtil]|[SEVERE]|[37]|: Error row : <AdventNetErrorCode ERRORCODE="18013" ERRORSTRING="ER_MAIL_SENDING_FAILED" ERRORMESSAGE="Mail sending failed." />|
[11:43:15:959]|[01-31-2013]|[com.adventnet.servicedesk.utils.ServiceDeskUtil]|[SEVERE]|[37]|: FAILURE :Problem while sending E-mail. : Mail sending failed.<br><br> Please report the problem to the system administrator. Support file will have the error trace to analyze the problem and which can be created at Support -> Create Support File.|
[11:43:15:959]|[01-31-2013]|[com.adventnet.sqlone.search.dbcrawler.ejb.internal.DatabaseCrawler]|[INFO]|[37]|: Connection obtained for crawling the database <AppIndexingInfo CRID="171" APPLICATIONID="1" APPLICATIONNAME="ServiceDesk" APPDSNAME="default" MAXWORDSIZE="200" INDEXINGDELIMITERS=",:@-. (){}" ENABLEPARTIALSEARCH="true" ENABLEDYNAMICINDEXING="true" ENABLEINCREMENTALINDEXING="false" POPULATE_FK_REL="false" STATUS="0" />|
[11:43:15:959]|[01-31-2013]|[com.adventnet.servicedesk.utils.ServiceDeskUtil]|[SEVERE]|[37]|: FAILURE :Error occured while sending.<br><br> Please report the problem to the system administrator. Support file will have the error trace to analyze the problem and which can be created at Support -> Create Support File.|
[11:43:15:959]|[01-31-2013]|[com.adventnet.servicedesk.utils.HdServiceDeskUtil]|[INFO]|[37]|: HTML Mail send option is enabled from cache true|
[11:43:47:381]|[01-31-2013]|[SYSOUT]|[INFO]|[32]|: THE NAME OF  THE USER IS :::::administrator|






 
Please help us to fix it.
 
Regards-
Meshbah Uddin Ahmed

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