c# - 使用 C# 从 sendgrid 发送计划电子邮件

Question

我正在使用SendGrid用于在我的应用程序中发送电子邮件。现在我想每周向我的用户发送电子邮件。 sendgrid 中是否有可用的功能，如果有，那么我如何在 C# 中使用该 api

Answer 1

SendGrid 支持按计划发送电子邮件，只需额外一行代码。

使用SendGridMessage.SendAt属性(property)。它期望 UNIX 时间戳为 long。

Gets or sets a unix timestamp allowing you to specify when you want your email to be sent from SendGrid. This is not necessary if you want the email to be sent at the time of your API request.

int sendAtUnixTime = new DateTimeOffset(sendOnUtcDateTime).ToUnixTimeSeconds();

var client = new SendGridClient("apiKey");
var from = new EmailAddress("fromEmailAddress", "fromName");
var to = new EmailAddress("toEmailAddress", "toName");
var msg = MailHelper.CreateSingleEmail(from, to, "subject", "", "bodyHtml");
msg.SendAt = sendAtUnixTime;                
var response = await client.SendEmailAsync(msg);