内存中的 Send-MailMessage 附件

Question

我正在尝试使用我在 this thread, which points to this URL 中找到的答案在 Send-MailMessage 中发送附件而不先保存到磁盘。

它说要使用：

$attachment = [System.Net.Mail.Attachment]::CreateAttachmentFromString($attachmenttext,"test.txt")

但是当我尝试使用 Send-MailMessage 而不是它显示的复杂方式来执行此操作时，我收到此错误：

Send-MailMessage -From "email@email.com" -To "email@email.com" -Subject "Subject" -Body $body -SmtpServer "smtp.server.local" -Port 25 -BodyAsHtml -Attachments $attachment

Send-MailMessage : Could not find file 'C:\Windows\system32\System.Net.Mail.Attachment'.
At line:3 char:1
+ Send-MailMessage -From "email@email.com" -To "email@e ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Send-MailMessage], FileNotFoundException
    + FullyQualifiedErrorId : System.IO.FileNotFoundException,Microsoft.PowerShell.Commands.SendMailMessage

是否可以继续通过此方法使用 Send-MailMessage？或者是否有不同的方法允许我在不先保存到磁盘的情况下附加文件，同时仍然使用 send-mailmessage？

Answer 1

让我先回顾一下哪里出了问题。 [System.Net.Mail.Attachment]::CreateAttachmentFromString 输出类型 System.Net.Mail.Attachment 而 send-mailmessage -attachments 正在寻找字符串数组 string[]。这就是示例失败的原因。

我编写了一个简单的函数，因此您可以使用您在示例中发布的附件创建一个 MailMessage 并查找 [System.Net.Mail.Attachment].

类型的附件

Function Try-SendMail([string[]]$To, [string]$From, [string]$SmtpServer, [int]$Port = 25, [pscredential]$SmtpCredential, [string]$Subject, [string]$Body, [System.Net.Mail.Attachment[]]$attachment, [switch]$IsBodyHTML){
    [System.Net.Mail.MailMessage]$Mail = new-object System.Net.Mail.MailMessage
    $To | %{$Mail.To.Add($_)}
    $Mail.From = $From
    $Mail.IsBodyHtml = $IsBodyHTML
    $Mail.Body = $Body
    $Mail.Subject = $Subject
    $Attachment | %{$mail.Attachments.Add($_)}
    [System.Net.Mail.SmtpClient]$SMTP = new-object System.Net.Mail.SmtpClient
    $SMTP.Host = $SmtpServer
    $SMTP.Port = $Port
    If($SmtpCredential){
        $NetCredential = New-Object System.Net.NetworkCredential
        $NetCredential.UserName = $SmtpCredential.GetNetworkCredential().UserName
        $NetCredential.Password = $SmtpCredential.GetNetworkCredential().Password
        $SMTP.Credentials = $NetCredential
    }
    try{
        $SMTP.Send($Mail)
    }catch{
        $_ | select *
    }
}

你可以像这样使用它

$To = @("Person1@Test.com","Person2@Test.com")
$From = "MainGuy@PErson.com"
$Server = "SMTPSERVER.NET"
$Port = 587
$Attachments = @(
    $([System.Net.Mail.Attachment]::CreateAttachmentFromString("HELLO", "Test.txt")),
    $([System.Net.Mail.Attachment]::CreateAttachmentFromString("HELLO2", "Test2.txt"))
)
$SmtpCredential = Get-Credential

Try-SendMail -to $To -From $From -Subject "Hello" -Body "World" -Attachment $Attachments -SmtpServer $Server -port $Port -SmtpCredential $SmtpCredential

*编辑忘记在函数参数

中使[System.Net.Mail.Attachment]到[System.Net.Mail.Attachment[]]

内存中的 Send-MailMessage 附件

Send-MailMessage Attachment from memory

powershell

scripting

attachment