我正在使用 NetCore.MailKit NuGet 包帮助我发送一封电子邮件,其中包含一个链接,用于在用户注册时确认他们的电子邮件。我已经按照他们 Github page 上的步骤操作了但是,我收到了 ArgumentNullException
对于地址,即使我已经设置了发送地址。
错误 :
ArgumentNullException: Value cannot be null. (Parameter 'address')
MimeKit.MailboxAddress..ctor(Encoding encoding, string name, string address)
使用 IEmailService 在我的 Controller 中发送电子邮件时会发生上述错误:
_EmailService.Send("usersemail@gmail.com", "subject", "message body");
这是我的
appsettings.json
配置: "EmailConfiguration": {
"Server": "smtp.gmail.com",
"Port": 587,
"SenderName": "name",
"SenderEmail": "mygmail@gmail.com",
"SenderPassword": "My gmail password"
}
这是我在
startup.cs
中的设置 services.AddMailKit(optionBuilder =>
{
optionBuilder.UseMailKit(new MailKitOptions()
{
//get options from sercets.json
Server = Configuration["Server"],
Port = Convert.ToInt32(Configuration["Port"]),
SenderName = Configuration["SenderName"],
SenderEmail = Configuration["SenderEmail"],
Account = Configuration["SenderEmail"],
Password = Configuration["SenderPassword"],
Security = true
});
});
下面是 EmailService 的代码:
public void Send(string mailTo, string subject, string message, bool isHtml = false)
{
SendEmail(mailTo, null, null, subject, message, Encoding.UTF8, isHtml);
}
private void SendEmail(string mailTo, string mailCc, string mailBcc, string subject, string message, Encoding encoding, bool isHtml)
{
var _to = new string[0];
var _cc = new string[0];
var _bcc = new string[0];
if (!string.IsNullOrEmpty(mailTo))
_to = mailTo.Split(',').Select(x => x.Trim()).ToArray();
if (!string.IsNullOrEmpty(mailCc))
_cc = mailCc.Split(',').Select(x => x.Trim()).ToArray();
if (!string.IsNullOrEmpty(mailBcc))
_bcc = mailBcc.Split(',').Select(x => x.Trim()).ToArray();
Check.Argument.IsNotEmpty(_to, nameof(mailTo));
Check.Argument.IsNotEmpty(message, nameof(message));
var mimeMessage = new MimeMessage();
//add mail from
mimeMessage.From.Add(new MailboxAddress(_MailKitProvider.Options.SenderName, _MailKitProvider.Options.SenderEmail));
//add mail to
foreach (var to in _to)
{
mimeMessage.To.Add(MailboxAddress.Parse(to));
}
//add mail cc
foreach (var cc in _cc)
{
mimeMessage.Cc.Add(MailboxAddress.Parse(cc));
}
//add mail bcc
foreach (var bcc in _bcc)
{
mimeMessage.Bcc.Add(MailboxAddress.Parse(bcc));
}
//add subject
mimeMessage.Subject = subject;
//add email body
TextPart body = null;
if (isHtml)
{
body = new TextPart(TextFormat.Html);
}
else
{
body = new TextPart(TextFormat.Text);
}
//set email encoding
body.SetText(encoding, message);
//set email body
mimeMessage.Body = body;
using (var client = _MailKitProvider.SmtpClient)
{
client.Send(mimeMessage);
}
}
正如你所看到的,我已经设置了一切,我在这里遗漏了什么吗?为什么
MimeKit.MailboxAddress()
处的地址为空?
最佳答案
您似乎没有正确加载配置设置。我怀疑您代码中的失败行是
//add mail from
mimeMessage.From.Add(new MailboxAddress(_MailKitProvider.Options.SenderName, _MailKitProvider.Options.SenderEmail));
选项都是空的,这会导致异常。
当您从配置文件加载设置时,您需要在变量之前添加部分名称。例如。
services.AddMailKit(optionBuilder =>
{
optionBuilder.UseMailKit(new MailKitOptions()
{
//get options from sercets.json
Server = Configuration["EmailConfiguration:Server"],
Port = Convert.ToInt32(Configuration["EmailConfiguration:Port"]),
SenderName = Configuration["EmailConfiguration:SenderName"],
SenderEmail = Configuration["EmailConfiguration:SenderEmail"],
Account = Configuration["EmailConfiguration:SenderEmail"],
Password = Configuration["EmailConfiguration:SenderPassword"],
Security = true
});
});
关于c# - 使用 NetCore.MailKit 发送电子邮件时地址的 ArgumentNullException,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60011683/