August 8, 2019
On Exchange 2013/2016 You may Receive an Error like :
The number of outstanding requests for guard TargetBackend("ServER_Name.fqdn.local") has exceeded the max limit 150. Current request will be rejected.
The Solution :
On all CAS servers:
In \Exchange Server\V15\FrontEnd\HttpProxy\sync\web.config, add this key in the node.
In \Exchange Server\V15\FrontEnd\HttpProxy\rpc\web.config, add this key in the node.
After this change recycle the MSExchangeSyncAppPool and MSExchangeRPCProxyAppPool in IIS manager (if you have more then one server I recommended to take a delay of 5 min between Servers ).
June 30, 2019
Hi NDR`s or Non Delivery Reports are reponses from servers saying this address does not exist Or Mailbox Is FULL . For example if you email Test@MyDomain.com you would receive an NDR that says email address not found. This lets the user who sent the email know they either have the wrong address or they have made a typo error. 1. if you want to disable NDR for all remote Domains: Get-RemoteDomain | Set-RemoteDomain –DeliveryReportEnabled $false if you want to disable NDR only for testdomain.com : Set-RemoteDomain testdomain.com –DeliveryReportEnabled $false ...
May 7, 2019
When you use OUTLOOK 2010/2013 and try to open Forms from Organizational Forms Library Public Folder you may receive the error : FORM LOAD FAILS This because of the Forms Cache on outlook that update by default every 24 hours. the Solution for that : 1. clear Form folder from : %USERPROFILE%\AppData\Local\Microsoft\FORMS\<profilename> (the outlook must close before) 2. use registry : To specify how often the cache should be refreshed in hours, use the following steps: Click Start, type Regedit, and then click OK. In the Registry Editor, locate the following key for Outlook 2010:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0-15.0\Outlook\Forms\ClassNamesCacheNote...
April 30, 2019
If you are looking for offline Tool to monitor yor local SMTP server you can use SMTP Diag Tool from - Http://www.spam10.com.
The Tool also Support servers that requires authentication (Like NTLM , User+Pass, Kerberus)
If you are looking for offline Toll to monitor yor local SMTP server you can use
April 17, 2019
קורסים חינם של מיקרוסופט במגוון טכנולוגיות הענן. וכמובן גם בנושאי security.
February 12, 2019
Hello You send Smtp Mail to Exchange Server , with the Option to authenticating with a domain user/password the send fail with “535 5.7.3 Authentication unsuccessful or 250 – AUTH NTM” The Solution : USE TLS connection or uncheck – offer Basic…..Tls SHMUEL H.
January 17, 2019
Hello you get the Error : "Windows cannot edit the permissions on 'Group Name' because they have been written in a nonstandard format by another application. To enable editing, you must use the application to restore the permissions to a standard format." If you Use the “hide option” on Exchange group you remark Everyone Group with “Deny”. to change the Permissions you can use This command : dsacls "CN=DL_group_name,OU=SomeOU,DC=domain,DC=local" /G Everyone:GA SHMUEL H.
January 3, 2019
Vmworld 2018 Barcelona Summarize . SHMUEL H.
December 31, 2018
To exclude a specific Exchange Server 2010-16 mailbox database from automatic provisioning use the following command in the Exchange Management Shell. C:\>Set-MailboxDatabase -Identity "Mailbox Database_NAME" -IsExcludedFromProvisioning $true T0 re enable database for automatic provisioning : C:\>Set-MailboxDatabase -Identity "Mailbox Database_NAME" -IsExcludedFromProvisioning $False SHMUEL H.
October 4, 2018
Ignite is over and now is the time to present some key announcements . The end of the password era Password are big headache for any Security officer . Microsoft introduce a new concept – Login Via Azure AD-connected apps via Microsoft Authenticator “We are not only protecting the Microsoft platform though. Our security helps protect hundreds of thousands of line-of-business and SaaS apps as they connect to Azure AD. We are delivering new support for password-less sign-in to Azure AD-connected apps via Microsoft Authenticator. The Authenticator app replaces your password with a more secure multi-factor sign-in that...