使用SMTP中继通过Google App发送邮件 [英] Send mail via google app with smtp relay

问题描述

我的应用程序在asp.net中使用c#，每天从应用程序发送一些通知电子邮件(超过500个).我们已将邮件托管更改为Google邮件应用.对于发送邮件，我使用的是smtp主机"smtp.gmail.com"，它可以正常工作，但是它的限制为99，因此在发出以下错误之后:

My application in asp.net with c#, from application some notification email sent daily (more then 500). We have change mail hosting to Google mail app. For sending mail I was using smtp host "smtp.gmail.com" and it was work fine, but it has limit of 99 so after that its gives below error:

Error : Mailbox unavailable. The server response was: 5.4.5 Daily sending quota exceeded. qa15sm12740316pab.12 – gsmtp

因此，我已按照文章 https://support.google.com配置了smtp中继/a/answer/2956491

我已经配置了smtp邮件设置，如下所示:

I have configured smtp mail settings as below:

<smtp from="from emai>">
    <network host="smtp-relay.gmail.com" enableSsl="true" password="password" userName="username" />
</smtp>

现在，我遇到以下错误，并且邮件未发送.

Now i am getting below errors, and mail is not sending.

Error : Mailbox unavailable. The server response was: 5.7.1 Invalid credentials for relay [xxx.xxx.xxx.xxx] gsmtp

我已经从Google Apps管理控制台设置了SMTP中继服务，并且还添加到了服务器的IP地址(请参见下图).我也尝试取消选中必需的SMTP身份验证"复选框.

I have setup SMTP relay service from Google Apps Admin Console and also added to IP address of server (please see below image). also i have tried to unchecked the "Required SMTP Authentication" check-box.

有人可以帮助我解决此问题吗?

Can anybody help me how to resolve this issue?

让我知道我是否错过了任何事情.

Let me know if i missed anything.

谢谢.

推荐答案

您可以取消选中需要SMTP身份验证"，然后在 web.config 中删除 userName 和密码.会起作用的.

You can untick 'Require SMTP Authenticaton' and in web.config remove userName and password. It will work.

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