c# - MailAddress:在邮件 header 中发现无效字符

Question

我正在使用 MailAddress 创建传真电子邮件。 我们正在使用名为 SatisFAXtion v 8.6 的系统。 为了提供传真封面，我可以将模板位置添加到 mail.TO 地址。

格式如下:

12125551234^template=cp\\FAXReportCover.rtf@fax.ourcompanymail.com

编译时它工作正常，但我需要两个反斜杠，所以我又添加了两个作为转义字符。

当我运行程序时出现异常:

Message: An invalid character was found in the mail header:
StackTrace: at System.Net.Mail.MailAddressParser.ParseLocalPart(String data, Int32& index, Boolean expectAngleBracket, Boolean expectMultipleAddresses)
   at System.Net.Mail.MailAddressParser.ParseAddress(String data, Boolean expectMultipleAddresses, Int32& index)
   at System.Net.Mail.MailAddressParser.ParseMultipleAddresses(String data)
   at System.Net.Mail.MailAddressCollection.ParseValue(String addresses)
   at System.Net.Mail.MailAddressCollection.Add(String addresses)
   at System.Net.Mail.Message..ctor(String from, String to)
   at System.Net.Mail.MailMessage..ctor(String from, String to)

有没有办法在 MailAddress 对象的电子邮件地址中插入反斜杠？

Answer 1

来自 Wikipedia :

The restrictions for special characters are that they must only be used when contained between quotation marks, and that 3 of them (The space, backslash \ and quotation mark " (ASCII: 32, 92, 34)) must also be preceded by a backslash \ (e.g. "\ \\"").

因此，我认为您的电子邮件地址无效，因为引号中没有包含反斜杠。

如果您可以将地址更改为类似 12125551234^template="cp\\"FAXReportCover.rtf@fax.ourcompanymail.com 的地址，我认为可以。