functions/Copy-DbaDatabaseMail.ps1

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function Copy-DbaDatabaseMail {
    <#
 .SYNOPSIS
  Migrates Mail Profiles, Accounts, Mail Servers and Mail Server Configs from one SQL Server to another.
 
 .DESCRIPTION
  By default, all mail configurations for Profiles, Accounts, Mail Servers and Configs are copied.
 
 .PARAMETER Source
  Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2000 or higher.
 
 .PARAMETER SourceSqlCredential
  Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use:
 
  $scred = Get-Credential, then pass $scred object to the -SourceSqlCredential parameter.
 
  Windows Authentication will be used if SourceSqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials.
 
  To connect as a different Windows user, run PowerShell as that user.
 
 .PARAMETER Destination
  Destination SQL Server. You must have sysadmin access and the server must be SQL Server 2000 or higher.
 
 .PARAMETER DestinationSqlCredential
  Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use:
 
  $dcred = Get-Credential, then pass this $dcred to the -DestinationSqlCredential parameter.
 
  Windows Authentication will be used if DestinationSqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials.
 
  To connect as a different Windows user, run PowerShell as that user.
 
 .PARAMETER Type
  Specifies the object type to migrate. Valid options are "Job", "Alert" and "Operator". When Type is specified, all categories from the selected type will be migrated.
 
 .PARAMETER WhatIf
  If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run.
 
 .PARAMETER Confirm
  If this switch is enabled, you will be prompted for confirmation before executing any operations that change state.
 
 .PARAMETER Silent
  If this switch is enabled, the internal messaging functions will be silenced.
 
 .PARAMETER Force
  If this switch is enabled, existing objects on Destination with matching names from Source will be dropped.
 
 .NOTES
  Tags: Migration, Mail
  Author: Chrissy LeMaire (@cl), netnerds.net
  Requires: sysadmin access on SQL Servers
 
  Website: https://dbatools.io
  Copyright: (C) Chrissy LeMaire, clemaire@gmail.com
  License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0
 
 .LINK
  https://dbatools.io/Copy-DbaDatabaseMail
 
 .EXAMPLE
  Copy-DbaDatabaseMail -Source sqlserver2014a -Destination sqlcluster
 
  Copies all database mail objects from sqlserver2014a to sqlcluster using Windows credentials. If database mail objects with the same name exist on sqlcluster, they will be skipped.
 
 .EXAMPLE
  Copy-DbaDatabaseMail -Source sqlserver2014a -Destination sqlcluster -SourceSqlCredential $cred
 
  Copies all database mail objects from sqlserver2014a to sqlcluster using SQL credentials for sqlserver2014a and Windows credentials for sqlcluster.
 
 .EXAMPLE
  Copy-DbaDatabaseMail -Source sqlserver2014a -Destination sqlcluster -WhatIf
 
  Shows what would happen if the command were executed.
  
 .EXAMPLE
  Copy-DbaDatabaseMail -Source sqlserver2014a -Destination sqlcluster -Silent:$true
 
  Performs execution of function, but disables output of all messages
 #>

    [cmdletbinding(DefaultParameterSetName = "Default", SupportsShouldProcess = $true)]
    param (
        [parameter(Mandatory = $true)]
        [DbaInstanceParameter]$Source,
        [parameter(Mandatory = $true)]
        [DbaInstanceParameter]$Destination,
        [Parameter(ParameterSetName = 'SpecificTypes')]
        [ValidateSet('ConfigurationValues', 'Profiles', 'Accounts', 'mailServers')]
        [string[]]$Type,
        [PSCredential]$SourceSqlCredential,
        [PSCredential]$DestinationSqlCredential,
        [switch]$Force,
        [switch]$Silent
    )

    begin {

        function Copy-DbaDatabaseMailConfig {
            [cmdletbinding(SupportsShouldProcess = $true)]
            param ()

            Write-Message -Message "Migrating mail server configuration values." -Level Verbose
            $copyMailConfigStatus = [pscustomobject]@{
                SourceServer      = $sourceServer.Name
                DestinationServer = $destServer.Name
                Name              = "Mail Configuration"
                Type              = "Configuration"
                Status            = $null
                DateTime          = [Sqlcollaborative.Dbatools.Utility.DbaDateTime](Get-Date)
            }
            if ($pscmdlet.ShouldProcess($destination, "Migrating all mail server configuration values.")) {
                try {
                    $sql = $mail.ConfigurationValues.Script() | Out-String
                    $sql = $sql -replace [Regex]::Escape("'$source'"), "'$destination'"
                    Write-Message -Message $sql -Level Debug
                    $destServer.Query($sql) | Out-Null
                    $mail.ConfigurationValues.Refresh()
                    $copyMailConfigStatus.Status = "Successful"
                }
                catch {
                    $copyMailConfigStatus.Status = "Failed"
                    $copyMailConfigStatus
                    Stop-Function -Message "Unable to migrate mail configuration." -Category InvalidOperation -InnerErrorRecord $_ -Target $destServer
                }
            }
            $copyMailConfigStatus
        }

        function Copy-DbaDatabaseAccount {
            $sourceAccounts = $sourceServer.Mail.Accounts
            $destAccounts = $destServer.Mail.Accounts

            Write-Message -Message "Migrating accounts." -Level Verbose
            foreach ($account in $sourceAccounts) {
                $accountName = $account.name
                $copyMailAccountStatus = [pscustomobject]@{
                    SourceServer      = $sourceServer.Name
                    DestinationServer = $destServer.Name
                    Name              = $accountName
                    Type              = "Mail Account"
                    Status            = $null
                    DateTime          = [Sqlcollaborative.Dbatools.Utility.DbaDateTime](Get-Date)
                }

                if ($accounts.count -gt 0 -and $accounts -notcontains $accountName) {
                    continue
                }

                if ($destAccounts.name -contains $accountName) {
                    if ($force -eq $false) {
                        $copyMailAccountStatus.Status = "Skipped"
                        $copyMailAccountStatus
                        Write-Message -Message "Account $accountName exists at destination. Use -Force to drop and migrate." -Level Warning
                        continue
                    }

                    If ($pscmdlet.ShouldProcess($destination, "Dropping account $accountName and recreating.")) {
                        try {
                            Write-Message -Message "Dropping account $accountName." -Level Verbose
                            $destServer.Mail.Accounts[$accountName].Drop()
                            $destServer.Mail.Accounts.Refresh()
                        }
                        catch {
                            $copyMailAccountStatus.Status = "Failed"
                            $copyMailAccountStatus
                            Stop-Function -Message "Issue dropping account." -Target $accountName -Category InvalidOperation -InnerErrorRecord $_ -Continue
                        }
                    }
                }

                if ($pscmdlet.ShouldProcess($destination, "Migrating account $accountName.")) {
                    try {
                        Write-Message -Message "Copying mail account $accountName." -Level Verbose
                        $sql = $account.Script() | Out-String
                        $sql = $sql -replace [Regex]::Escape("'$source'"), "'$destination'"
                        Write-Message -Message $sql -Level Debug
                        $destServer.Query($sql) | Out-Null
                        $copyMailAccountStatus.Status = "Successful"
                    }
                    catch {
                        $copyMailAccountStatus.Status = "Failed"
                        $copyMailAccountStatus
                        Stop-Function -Message "Issue copying mail account." -Target $accountName -Category InvalidOperation -InnerErrorRecord $_
                    }
                }
                $copyMailAccountStatus
            }
        }

        function Copy-DbaDatabaseMailProfile {

            $sourceProfiles = $sourceServer.Mail.Profiles
            $destProfiles = $destServer.Mail.Profiles

            Write-Message -Message "Migrating mail profiles." -Level Verbose
            foreach ($profile in $sourceProfiles) {

                $profileName = $profile.name
                $copyMailProfileStatus = [pscustomobject]@{
                    SourceServer      = $sourceServer.Name
                    DestinationServer = $destServer.Name
                    Name              = $profileName
                    Type              = "Mail Profile"
                    Status            = $null
                    DateTime          = [Sqlcollaborative.Dbatools.Utility.DbaDateTime](Get-Date)
                }

                if ($profiles.count -gt 0 -and $profiles -notcontains $profileName) {
                    continue
                }

                if ($destProfiles.name -contains $profileName) {
                    if ($force -eq $false) {
                        $copyMailProfileStatus.Status = "Skipped"
                        $copyMailProfileStatus
                        Write-Message -Message "Profile $profileName exists at destination. Use -Force to drop and migrate." -Level Warning
                        continue
                    }

                    If ($pscmdlet.ShouldProcess($destination, "Dropping profile $profileName and recreating.")) {
                        try {
                            Write-Message -Message "Dropping profile $profileName." -Level Verbose
                            $destServer.Mail.Profiles[$profileName].Drop()
                            $destServer.Mail.Profiles.Refresh()
                        }
                        catch {
                            $copyMailProfileStatus.Status = "Failed"
                            $copyMailProfileStatus
                            Stop-Function -Message "Issue dropping profile." -Target $profileName -Category InvalidOperation -InnerErrorRecord $_ -Continue
                        }
                    }
                }

                if ($pscmdlet.ShouldProcess($destination, "Migrating mail profile $profileName.")) {
                    try {
                        Write-Message -Message "Copying mail profile $profileName." -Level Verbose
                        $sql = $profile.Script() | Out-String
                        $sql = $sql -replace [Regex]::Escape("'$source'"), "'$destination'"
                        Write-Message -Message $sql -Level Debug
                        $destServer.Query($sql) | Out-Null
                        $destServer.Mail.Profiles.Refresh()
                        $copyMailProfileStatus.Status = "Successful"
                    }
                    catch {
                        $copyMailProfileStatus.Status = "Failed"
                        $copyMailProfileStatus
                        Stop-Function -Message "Issue copying mail profile." -Target $profileName -Category InvalidOperation -InnerErrorRecord $_
                    }
                }
                $copyMailProfileStatus
            }
        }

        function Copy-DbaDatabaseMailServer {
            $sourceMailServers = $sourceServer.Mail.Accounts.MailServers
            $destMailServers = $destServer.Mail.Accounts.MailServers

            Write-Message -Message "Migrating mail servers." -Level Verbose
            foreach ($mailServer in $sourceMailServers) {
                $mailServerName = $mailServer.name
                $copyMailServerStatus = [pscustomobject]@{
                    SourceServer      = $sourceServer.Name
                    DestinationServer = $destServer.Name
                    Name              = $mailServerName
                    Type              = "Mail Server"
                    Status            = $null
                    DateTime          = [Sqlcollaborative.Dbatools.Utility.DbaDateTime](Get-Date)
                }
                if ($mailServers.count -gt 0 -and $mailServers -notcontains $mailServerName) {
                    continue
                }

                if ($destMailServers.name -contains $mailServerName) {
                    if ($force -eq $false) {
                        $copyMailServerStatus.Status = "Skipped"
                        $copyMailServerStatus
                        Write-Message -Message "Mail server $mailServerName exists at destination. Use -Force to drop and migrate." -Level Warning
                        continue
                    }

                    If ($pscmdlet.ShouldProcess($destination, "Dropping mail server $mailServerName and recreating.")) {
                        try {
                            Write-Message -Message "Dropping mail server $mailServerName." -Level Verbose
                            $destServer.Mail.Accounts.MailServers[$mailServerName].Drop()
                        }
                        catch {
                            $copyMailServerStatus.Status = "Failed"
                            $copyMailServerStatus
                            Stop-Function -Message "Issue dropping mail server." -Target $mailServerName -Category InvalidOperation -InnerErrorRecord $_ -Continue
                        }
                    }
                }

                if ($pscmdlet.ShouldProcess($destination, "Migrating account mail server $mailServerName.")) {
                    try {
                        Write-Message -Message "Copying mail server $mailServerName." -Level Verbose
                        $sql = $mailServer.Script() | Out-String
                        $sql = $sql -replace [Regex]::Escape("'$source'"), "'$destination'"
                        Write-Message -Message $sql -Level Debug
                        $destServer.Query($sql) | Out-Null
                        $copyMailServerStatus.Status = "Successful"
                    }
                    catch {
                        $copyMailServerStatus.Status = "Failed"
                        $copyMailServerStatus
                        Stop-Function -Message "Issue copying mail server" -Target $mailServerName -Category InvalidOperation -InnerErrorRecord $_
                    }
                }
                $copyMailServerStatus
            }
        }

        $sourceServer = Connect-SqlInstance -SqlInstance $Source -SqlCredential $SourceSqlCredential
        $destServer = Connect-SqlInstance -SqlInstance $Destination -SqlCredential $DestinationSqlCredential

        $source = $sourceServer.DomainInstanceName
        $destination = $destServer.DomainInstanceName


        if ($sourceServer.versionMajor -lt 9 -or $destServer.versionMajor -lt 9) {
            Write-Message -Message "Database Mail is only supported in SQL Server 2005 and above. Quitting." -Level Warning
        }

        $mail = $sourceServer.mail
    }
    process {

        if ($type.count -gt 0) {

            switch ($type) {
                "ConfigurationValues" {
                    Copy-DbaDatabaseMailConfig
                    $destServer.Mail.ConfigurationValues.Refresh()
                }

                "Profiles" {
                    Copy-DbaDatabaseMailProfile
                    $destServer.Mail.Profiles.Refresh()
                }

                "Accounts" {
                    Copy-DbaDatabaseAccount
                    $destServer.Mail.Accounts.Refresh()
                }

                "mailServers" {
                    Copy-DbaDatabaseMailServer
                }
            }

            return
        }

        if (($profiles.count + $accounts.count + $mailServers.count) -gt 0) {

            if ($profiles.count -gt 0) {
                Copy-DbaDatabaseMailProfile -Profiles $profiles
                $destServer.Mail.Profiles.Refresh()
            }

            if ($accounts.count -gt 0) {
                Copy-DbaDatabaseAccount -Accounts $accounts
                $destServer.Mail.Accounts.Refresh()
            }

            if ($mailServers.count -gt 0) {
                Copy-DbaDatabaseMailServer -mailServers $mailServers
            }

            return
        }

        Copy-DbaDatabaseMailConfig
        $destServer.Mail.ConfigurationValues.Refresh()
        Copy-DbaDatabaseAccount
        $destServer.Mail.Accounts.Refresh()
        Copy-DbaDatabaseMailProfile
        $destServer.Mail.Profiles.Refresh()
        Copy-DbaDatabaseMailServer
        $copyMailConfigStatus
        $copyMailAccountStatus
        $copyMailProfileStatus
        $copyMailServerStatus
        $enableDBMailStatus

        <# ToDo: Use Get/Set-DbaSpConfigure once the dynamic parameters are replaced. #>

        $sourceDbMailEnabled = ($sourceServer.Configuration.DatabaseMailEnabled).ConfigValue
        Write-Message -Message "$sourceServer DBMail configuration value: $sourceDbMailEnabled." -Level Verbose

        $destDbMailEnabled = ($destServer.Configuration.DatabaseMailEnabled).ConfigValue
        Write-Message -Message "$destServer DBMail configuration value: $destDbMailEnabled." -Level Verbose
        $enableDBMailStatus = [pscustomobject]@{
            SourceServer      = $sourceServer.name
            DestinationServer = $destServer.name
            Name              = "Enabled DBMail on Destination"
            Type              = "Configuration"
            Status            = if ($destDbMailEnabled -eq 1) { "Enabled" } else { $null }
            DateTime          = [Sqlcollaborative.Dbatools.Utility.DbaDateTime](Get-Date)
        }

        if (($sourceDbMailEnabled -eq 1) -and ($destDbMailEnabled -eq 0)) {
            if ($pscmdlet.ShouldProcess($destination, "Enabling Database Mail")) {
                try {
                    Write-Message -Message "Enabling Database Mail on $destServer." -Level Verbose
                    $destServer.Configuration.DatabaseMailEnabled.ConfigValue = 1
                    $destServer.Alter()
                    $enableDBMailStatus.Status = "Successful"
                }
                catch {
                    $enableDBMailStatus.Status = "Failed"
                    $enableDBMailStatus
                    Stop-Function -Message "Cannot enable Database Mail." -Category InvalidOperation -InnerErrorRecord $_ -Target $destServer
                }
            }
            $enableDBMailStatus
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -Silent:$false -Alias Copy-SqlDatabaseMail
    }
}