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Apoc70 / Update-UPN.ps1
Last active October 25, 2021 07:00
Update UPN suffix for all users in preparation Azure AD Connect
# Update the User Principal Name for all User Objects
$CustomDomain = "mcsmemail.de"
# Add custom domain as suffix first
Get-ADForest | Set-ADForest -UPNSuffixes @{add=$CustomDomain}
# Update all user objects
Get-ADUser -Filter * -Properties SamAccountName | ForEach-Object { Set-ADUser $_ -UserPrincipalName ($_.SamAccountName + "@$($CustomDomain)" )}
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Apoc70 / Clear-ADCDisabledMail.ps1
Last active October 25, 2021 12:56
This scripts clears the attribute legacyExchangeDN if set to ADCDisabledMail
# This script clears the legacyExchangeDN attribute of AD objects if the attribute is set to ADCDisabledMail
# Active Directory search base, adjust as needed for your AD
$SearchBase = 'DC=VARUNAGROUP,DC=DE'
# Our search filter
$Filter = 'legacyExchangeDN -eq "ADCDisabledMail"'
$csvFilename = 'ADCDisabledMail-Users.csv'
# Search for user objects matching the filter in the defined search base
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Apoc70 / nginx.conf
Created August 1, 2022 18:34
Partial nginx.conf file for an Exchange 2019 reverse proxy configuration
user www-data;
worker_processes auto;
pid /run/nginx.pid;
load_module modules/ndk_http_module.so;
load_module modules/ngx_http_lua_module.so;
load_module modules/ngx_stream_lua_module.so;
load_module modules/ngx_http_headers_more_filter_module.so;
events {
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Apoc70 / Create-TestUsers.ps1
Created August 29, 2022 14:18
A simple script fro creating test user accounts in AD.
# Number of user accounts to create
$UserCount = 5
$RandomPassword = $true
$DefaultPassword = 'Pa55w.rd'
# User name prefix
# New user object will be named TestUser1, TestUser2, ...
$TestUserPrefix = 'TestUser'
# User object properties
$GivenName = 'Test'
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Apoc70 / Add-EXOSmtpGatewayConnectors.ps1
Created February 5, 2023 08:43
This PowerShell script creats an Exchange Online inbound and outbound connector, and adds a transport rulle for the outbound connector.
# Name of the on-premises SMTP gateway
$GatewayName = 'NoSpamProxy'
# TLS certificate common name for incoming connection to EOP
$InboundTlsCN = 'smpto.varunagroup.de'
# TLS certificate common name for outgoing connection to EOP
$OutboundTlsCN = 'smpto.varunagroup.de'
# Fully qualified domain name (FQDN) of the on-premises SMTP gateway
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Apoc70 / MessageModify.cs
Created March 10, 2023 17:24
Example for intercepting email messages in an Exchange 2010 transport queue
// AttachmentModify
// ----------------------------------------------------------
// Example for intercepting email messages in an Exchange 2010 transport queue
//
// The example intercepts messages sent from a configurable email address(es)
// and checks the mail message for attachments have filename in to format
//
// WORKBOOK_{GUID}
//
// Changing the filename of the attachments makes it easier for the information worker
# Fetch all mail users
$DomainNameFilter = '*varunagroup.de'
Get-MailUser -ResultSize Unlimited | ?{$_.ExternalEmailAddress -like $DomainNameFilter} | Sort-Object DisplayName | Select-Object DisplayName, PrimarySmtpAddress
# New B2B user email address
$newEmailAddress = "user@setebos-ag.com"
# Update primary SMTP address for a selected user
$B2BUserToUpdate = 'USER_varunagroup.de#EXT#'
Set-MailUser $B2BUserToUpdate -ExternalEmailAddress "SMTP:$newEmailAddress" -WindowsEmailAddress $newEmailAddress
# Get EXO mailboxes by size
Get-ExoMailbox -RecipientTypeDetails UserMailbox -ResultSize Unlimited | Get-ExoMailboxStatistics | Sort TotalItemSize -Descending | Format-Table DisplayName, TotalItemSize, ItemCount
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Apoc70 / SAN-Certificate-Request.inf
Created June 16, 2018 17:39
Beispiel einer .inf-Datei für die Erstellung eines SAN-Zertifikates
[Version]
Signature="$Windows NT$"
[NewRequest]
Subject = "CN=mail.varunagroup.de,OU=IT,O=Varunagroup AG,L=Berlin,S=BE,C=DE" ; Remove to use an empty Subject name.
Exportable = TRUE ; TRUE = Private key is exportable
KeyLength = 2048 ; Valid key sizes: 1024, 2048, 4096, 8192, 16384
KeySpec = 1 ; Key Exchange – Required for encryption
KeyUsage = 0xA0 ; Digital Signature, Key Encipherment