SendGrid 营销电子邮件延迟？

Question

步骤

创建收件人列表
创建营销电子邮件
将电子邮件添加到收件人列表
将收件人列表分配给营销电子邮件

当我调试缓慢时，我成功地通过了所有步骤，并收到来自 sendgrid 的成功消息。

但是在非调试模式下，虽然我成功地将电子邮件添加到收件人列表（来自 sendgrid 的结果 return），但在第 4 步中，我得到的结果是 return List 没有收件人。我刷新浏览器，在收件人列表中也看到了邮件。

我尝试在开始处理步骤 4 之前放置 timer.interval，但也得到相同的结果 return。

VB ProcessHandler 代码

' Add email and name to recipient list 
 If oSendMarketingEmail.AddEmailToList(oItemDetails.Email, oItemDetails.Full_Name, sRecipientList) = False Then Exit Try

' Wait for the email and name added to recipient list
 Dim timer As New Timers.Timer
 timer.Interval = 20000

 ' Assigning recipient list to marketing email
  If oSendMarketingEmail.AddListToMarketingEmail(sMarketingEmailName, sRecipientList) = False Then Exit Try

VB 函数代码

    Public Function AddEmailToList(sEmailAddress As String, sName As String, sRecipientList As String) As Boolean

        Dim ResultsHTML As String = ""

        Dim URL As String = (Convert.ToString("http://sendgrid.com/api/newsletter/lists/email/add.xml?list=") & sRecipientList) + "&data=" + "{""email"":""" + sEmailAddress + """,""name"":""" + sName + """}" + "&api_user=" + SendGridUserName + "&api_key=" + SendGridPassword
        Dim SendGridResponse As String = PerformHTTPGet(URL)
        ResultsHTML += (Convert.ToString("Adding email to List: ") & SendGridResponse) + "<br/>"

        ' Check respond status - success
        If Not ResultsHTML.Contains("insert") Then logger.log.Info(ResultsHTML) : Return False Else Return True

    End Function


    Public Function AddListToMarketingEmail(sMarketingEmailName As String, sRecipientList As String) As Boolean

        Dim ResultsHTML As String = ""

        'Assign list to marketing email
        Dim URL As String = (Convert.ToString((Convert.ToString("http://sendgrid.com/api/newsletter/recipients/add.xml?name=") & sMarketingEmailName) + "&list=") & sRecipientList) + "&api_user=" + SendGridUserName + "&api_key=" + SendGridPassword
        Dim SendGridResponse As String = PerformHTTPGet(URL)
        ResultsHTML += (Convert.ToString("Assigning Marketing Email to List: ") & SendGridResponse) + "<br/>"

        ' Check respond status - success
        If Not ResultsHTML.Contains("success") Then logger.log.Info(ResultsHTML) : Return False

    End Function

Answer 1

在 SendGrid 中，列表计数可能需要一段时间才能更新。 "force" 的一种方法是查询完整列表，这会触发系统进行计数，并更新计数，然后您可以正确附加它。

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