Hello all.

I've install ZCS 7.1.4 CE and used it for about 3 months without any problems. Now I have some strange things =) When I create new user, and try to send an email to him(her) via zmdesktop I get the following message:

Your message "test" sent on Июнь 18, 2012 at 10:03 AM to "testerrr@mydomain.ru" can't be delivered. None of the recipients will receive the message. It has been returned to Drafts folder for your review.

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Product name: Zimbra Desktop
Product version: 7.1.4
Build ID: 11299
Release type: GA
OS Platform: Windows 7 x86 6.1
Time of event: 2012-06-18 10:03:20
Error type: mail.SEND_FAILURE
Item ID: 1073741997
Error summary: send mail failed

Failure details - PLEASE REMOVE ANY SENSITIVE INFORMATION
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<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"><soap:Header><context xmlns="urn:zimbra"><authToken>0_48fca8b5e73aef8675 12d12cb795d5f61d031fd9_69643d33363a646135353937663 82d396434342d343464372d396130382d34346161363934623 63864643b6578703d31333a313334303135363337313631333 b747970653d363a7a696d6272613b</authToken><nosession/><userAgent name="Zimbra Desktop" version="7.1.4_11299_Windows"/></context></soap:Header><soap:Body><SendMsgRequest suid="171d291d-f594-4228-a58a-7be4ff80a68d" xmlns="urn:zimbraMail"><m aid="1cb97430-be4b-41ef-a415-842b5c9c91a1:1658bb71-310d-4cf3-9d54-287aeef0b30d"/></SendMsgRequest></soap:Body></soap:Envelope>

<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"><soap:Header><context xmlns="urn:zimbra"><change token="18677"/></context></soap:Header><soap:Body><soap:Fault><soap:Code><soa p:Value>soap:Sender</soap:Value></soap:Code><soap:Reason><soap:Text>SMTP server reported: MESSAGE_NOT_DELIVERED</soap:Text></soap:Reason><soapetail><Error xmlns="urn:zimbra"><Code>mail.SEND_FAILURE</Code><Trace>btpool0-18://zimbra.domain.loc/service/soap/SendMsgRequest:1339988601332:b2a62df566bd8c8e</Trace></Error></soapetail></soap:Fault></soap:Body></soap:Envelope>

com.zimbra.common.soap.SoapFaultException: SMTP server reported: MESSAGE_NOT_DELIVERED
ExceptionId:btpool0-18://zimbra.domain.loc/service/soap/SendMsgRequest:1339988601332:b2a62df566bd8c8e
Code:mail.SEND_FAILURE
at com.zimbra.common.soap.Soap12Protocol.soapFault(So ap12Protocol.java:88)
at com.zimbra.common.soap.SoapTransport.extractBodyEl ement(SoapTransport.java:354)
at com.zimbra.common.soap.SoapTransport.parseSoapResp onse(SoapTransport.java:313)
at com.zimbra.common.soap.SoapHttpTransport.invoke(So apHttpTransport.java:260)
at com.zimbra.common.soap.SoapHttpTransport.invoke(So apHttpTransport.java:164)
at com.zimbra.common.soap.SoapTransport.invoke(SoapTr ansport.java:407)
at com.zimbra.common.soap.SoapTransport.invokeWithout Session(SoapTransport.java:393)
at com.zimbra.cs.mailbox.ZcsMailbox.sendRequest(ZcsMa ilbox.java:670)
at com.zimbra.cs.mailbox.ZcsMailbox.sendRequest(ZcsMa ilbox.java:632)
at com.zimbra.cs.mailbox.ZcsMailbox.sendRequest(ZcsMa ilbox.java:627)
at com.zimbra.cs.mailbox.ZcsMailbox.sendRequest(ZcsMa ilbox.java:620)
at com.zimbra.cs.mailbox.ZcsMailbox.sendRequest(ZcsMa ilbox.java:616)
at com.zimbra.cs.mailbox.ZcsMailbox.sendRequest(ZcsMa ilbox.java:612)
at com.zimbra.cs.mailbox.ZcsMailbox.sendRequest(ZcsMa ilbox.java:608)
at com.zimbra.cs.mailbox.PushChanges.sendPendingMessa ges(PushChanges.java:392)
at com.zimbra.cs.mailbox.PushChanges.sendPendingMessa ges(PushChanges.java:456)
at com.zimbra.cs.mailbox.MailboxSync.sync(MailboxSync .java:153)
at com.zimbra.cs.mailbox.ZcsMailbox.sync(ZcsMailbox.j ava:123)
at com.zimbra.cs.mailbox.ZcsMailbox.syncOnTimer(ZcsMa ilbox.java:104)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:255)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

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When I try to send an email via web-face it simply says "unable to send an email". What am I doing wrong?..