Jairo Cetina

Sometimes our mail server are report in spam or blacklist. To solve this issue, we can to create a SPF (Sender Policy Framework) that is an e-mail validation system designed to prevent e-mail spam by tackling source address spoofing, a common vulnerability. SPF allows administrators to specify which hosts are allowed to send e-mail from a given domain by creating a specific SPF record in the public Domain Name System (DNS). Mail exchangers then use the DNS to check that mail from a given domain is being sent by a host sanctioned by that domain's administrators. In internet exist many SPF Record Wizard for example: http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/ http://www.openspf.org/ When you finish the wizard create a TXT record in your DNS Server with all information show in wizard results, for example in windows:

ERROR ”Unable to edit the specified E-mail address policy. E-mail address policies created with legacy versions of Exchange must be upgraded using the 'Set-EmailAddressPolicy' task, with the Exchange 2007 Recipient Filter specified. " RESOLUTION To upgrade the five default Address list have well-known filters, I can simply provide the Exchange 2007 equivalent of these well-known filters to do the upgrades. Here are the one-liners: Set-AddressList "All Users" -IncludedRecipients MailboxUsers Set-AddressList "All Groups" -IncludedRecipients MailGroups Set-AddressList "All Contacts" -IncludedRecipients MailContacts And the last two that are slightly different, since there are not "precanned" filters for public folder recipient type: Set-AddressList "Public Folders" -RecipientFilter { RecipientType -eq 'PublicFolder' } Set-GlobalAddressList "Default Global Address List" -RecipientFilter {(Ali...

  If you receive a message on top of your browser: The files <file names> were not attached because they exceed the maximum size limit of <size limit> megabytes (MB) for attachments. Configure message size limits for you organization. Start the Exchange Management Shell. Type the following command: Set-TransportConfig -MaxSendSize Size <value> For example, to set the maximum message size to 10 MB, type: Set-TransportConfig -MaxSendSize 10MB . Restart Microsoft Exchange Information Store service to apply change. To configure Outlook Web Access to allow content that is equal to the size of the maximum message size on a Windows Server 2008-based computer At a command prompt, type the following: cd %windir%\system32\inetsrv Type the following command: appcmd set config "Default Web Site/owa" -section:requestFiltering -requestLimits.maxAllowedConte...

Create users can be a very easy task if you use scripts and templates. Now we need: A CSV file NewUsers.csv and following data Name, User principal Name, Organizational Unit and Mailbox database: Name,UPN,OU,edb Ramirez,ramirez@Mydomain.loc,Mydomain.loc/Mydomain/Users,Mailbox database Create a Mailbox Template and configure with parameters that you want, for example: _TemplateComercial Create a script and save it, for example: filename.ps1 Param( [string] $Template, [string] $CSVFile ) $temp=get-mailbox $Template $Pass=convertto-securestring Password123 -asplaintext -force import-csv $CSVFile | foreach-object -process {new-mailbox -name $_.name -userprincipalname $_.UPN -organizationalunit $_.OU -database $_.EDB -password $pass -resetpasswordonnextlogon $true -templateinstance $temp} Save your script in you exchange installation for example: D:\Program Files\Mic...

When I was migrating exchange 2000 to exchange 2007, the system prompt this problem: "The Exchange server address list service failed to respond. This could be because of an address list or email address policy configuration error. " "El servicio de lista de direcciones de servidor de Exchange no respondió. Esto puede ser debido a un error en la configuración de la directiva de dirección de correo electrónico o de la lista de direcciones." Cause 1 The CN=Public Folders object is missing under CN=All Address Lists in the Active Directory directory service. Cause 2 The Allow inheritable permissions from the parent to propagate to this object and all child objects check box is not selected on the CN=All Address Lists object and on the CN=Public Folders object. Note This may be the cause in an organization in which you modify permissions to configure separate address lists for different groups. Cause 3 There is a parenthesis or an ampersand in a recipient...

[ERROR] Cannot find at least one domain controller running Windows Server 2003 Service Pack 1 or later in domain 'DC=DCName,DC=com,DC=DCName'. This could be the result of moving domain controller objects in Active Directory. Check that at least one domain controller running Windows Server 2003 Service Pack 1 or later is located in the 'Domain Controllers' organizational unit (OU) and rerun setup. It happen when you are installing or upgrading Exchange 2007 in an Active Directory that has only Windows Server 2008 R2 Domain Controllers or yours Windows Server 2003 domain controllers that are not updated to at least Windows Server 2003 SP1. Fix: Download the updated ExBPA.PreReqs.xml and ExBPA.Readiness.xml, then replace this files in "Setup\ServerRoles\Common\ ". http://www.microsoft.com/products/servers/exchange/code/ExBPA/Exchange2007/12.2/en/ExBPA.PreReqs.Xml http://www.microsoft.com/products/servers/exchange/code/ExBPA/Exchange2007/12.2/en/ExBPA.Readi...

Exchange Server 2007 SP1 no es consciente de los cambios ordenación NLS en  (National Language Support) de Windows Server 2008. Por lo tanto, hay un bucle infinito en el proceso Store.exe y registros de transacciones se generan rápidamente. Para solucionar el incidente es necesario instalar el Update Rollup 9 for Exchange Server 2007 Service Pack 1 Ver: http://support.microsoft.com/kb/959559/en-us

Articulo de Microsoft donde muestra como calcular anchos de banda para usuarios de CAS de Exchange 2007. Ver: http://technet.microsoft.com/en-us/library/cc540453.aspx