Email Powershell Send MailMessage在发送失败后不处理附件

我的自动Powershell Hyper-V备份脚本有点问题。该脚本功能完美，但我的问题是，当我试图发送一封带有日志文件作为附件的电子邮件时，它在发送失败后不会解锁该文件。（当它成功发送邮件时，我无法检查它的行为，但老实说，它也应该处理它，即使它无法发送。）

我在网上搜索过，我能找到的是：

发送邮件消息发送后自动处理附件 邮件

将Powershell v1中的方法用于新对象 system.net.mail.mailmessage和新对象 system.net.mail.attachment

以下是我的代码部分（我已将其缩短为所需代码的要点）：

所以我的问题是，在发送电子邮件失败后，如何使Send MailMessage处理附件，以便我的脚本可以继续写入日志文件

当邮件成功发送时，上面的脚本可以正常工作，不会抛出任何错误，也不会锁定文件

亲切问候,

托马斯·施密特

编辑：

我选择了旧的Powershell v1方式：

Try
{
    $SMTPServer = "exchange.example.dk"
    $SMTP = new-object Net.Mail.SmtpClient($SMTPServer)

    $EmailAttachment = new-object Net.Mail.Attachment($Logfile)
    $EmailMessage = new-object Net.Mail.MailMessage

    $EmailMessage.Attachments.Add($EmailAttachment)
    $EmailMessage.From = "service@example.dk"
    $EmailMessage.To.Add("spport@example.dk")
    $EmailMessage.Subject = "Notification from email server"
    $EmailMessage.Body = "Hello,
An error occurred during A/S Hyper-V Backup on $ComputerName.

I have attached the log file, $LogFile, to this mail.

Kind Regards,
Hyper-V Backup.
"
    $SMTP.Send($EmailMessage)
    $EmailAttachment.Dispose()
    Write-Host "# $(Get-Date) :: Successfully send log file to 'Support@example.dk" -foregroundcolor green; "# $(Get-Date) :: Successfully send log file to 'Support@example.dk" | Out-File $LogFile -Append
}
Catch
{
    $EmailAttachment.Dispose()
    Write-Host "# $(Get-Date) :: Failed to send log file to 'Support@example.dk" -foregroundcolor red; "# $(Get-Date) :: Failed to send log file to 'Support@example.dk" | Out-File $LogFile -Append
    "                      :: Error Command: SMTP.Send(EmailMessage)" | Out-File $LogFile -Append
    "                      :: Error Message: $($_.Exception.Message)" | Out-File $LogFile -Append
}

但是，如果有人能提供上述问题的答案，我愿意使用该解决方案

亲切问候,

---

托马斯·施密特（Thomas Schmidt）

这就是我处理这件事的方式，它似乎对我有用：

 try {
    $ErrorActionPreference = 'Stop'
    $SmtpSettings = @{
        To = $Recipients.Split(',')
        From = $Sender
        SmtpServer = $SmtpServer
        Subject = "Email test"
        Body = "Please check attached file"
        Attachment = $Attachment
    }
    Send-MailMessage @SmtpSettings -BodyAsHtml
 } catch {
    $ErrorActionPreference = 'Continue'
    [gc]::collect()
    $CustomError = ($_ -replace "`r`n","")
    $ScriptLine = "$($_.InvocationInfo.ScriptLineNumber)" +','+ "$($_.InvocationInfo.OffsetInLine)"
    Write-Verbose "Error sending email: $CustomError (script line $ScriptLine)"
}

我基本上使用了垃圾收集器-[gc]：：collect（），尽管在发送电子邮件时出错，它还是解锁了附件文件。

---

我还将$ErrorActionPreference='Stop'设置在try中，这样它就可以正确地捕捉错误，而$ErrorActionPreference='Continue'设置在catch中，这样脚本就不会完全停止。

试试这种旧样式。对我来说很好

#Send Email
$smtpServer = "10.10.10.10"
$file = "C:\Temp\TEST.zip"
$att = new-object Net.Mail.Attachment($file)
$msg = new-object Net.Mail.MailMessage
$smtp = new-object Net.Mail.SmtpClient($smtpServer)
$msg.From = "MYNAME@DOMAIN.com"
$msg.To.Add("yourname@domian.com")
$msg.CC.Add("yourname2@domain.com")
$msg.Subject = "Subject here"
$msg.Body = "Body here"
$msg.Attachments.Add($att)
$smtp.Send($msg)
$att.Dispose()

 try {
    $ErrorActionPreference = 'Stop'
    $SmtpSettings = @{
        To = $Recipients.Split(',')
        From = $Sender
        SmtpServer = $SmtpServer
        Subject = "Email test"
        Body = "Please check attached file"
        Attachment = $Attachment
    }
    Send-MailMessage @SmtpSettings -BodyAsHtml
 } catch {
    $ErrorActionPreference = 'Continue'
    [gc]::collect()
    $CustomError = ($_ -replace "`r`n","")
    $ScriptLine = "$($_.InvocationInfo.ScriptLineNumber)" +','+ "$($_.InvocationInfo.OffsetInLine)"
    Write-Verbose "Error sending email: $CustomError (script line $ScriptLine)"
}

#Send Email
$smtpServer = "10.10.10.10"
$file = "C:\Temp\TEST.zip"
$att = new-object Net.Mail.Attachment($file)
$msg = new-object Net.Mail.MailMessage
$smtp = new-object Net.Mail.SmtpClient($smtpServer)
$msg.From = "MYNAME@DOMAIN.com"
$msg.To.Add("yourname@domian.com")
$msg.CC.Add("yourname2@domain.com")
$msg.Subject = "Subject here"
$msg.Body = "Body here"
$msg.Attachments.Add($att)
$smtp.Send($msg)
$att.Dispose()