我们正在考虑迁移到 O365；但是，我们开发的软件使用我们当前的 Exchange 服务器向外部用户发送电子邮件，并在发生错误时发送到支持箱.
We are thinking about moving to O365; however, we developed software that uses our current Exchange server to send email both to external users as well as to a support box when errors occur.
我一直在对此进行测试，以确保我们现有的代码将继续与 O365 一起使用，但到目前为止，我还不是很成功.
I've been testing this to ensure that the code we have in place will continue to work with O365 but so far, I have not been very successful.
我尝试过使用 .Net 的 SmtpClient 和 MailKit 的 SmtpClient，但似乎都没有.我不断收到错误(这是来自 MailKit 的错误——.Net 错误类似)
I have tried using .Net's SmtpClient as well as MailKit's SmtpClient and neither one seems to work. I keep getting error (this is the error from MailKit -- the .Net error is similar)
AuthenticationInvalidCredentials:5.7.3 身份验证不成功[*.prod.exchangelabs.com]"
"AuthenticationInvalidCredentials: 5.7.3 Authentication unsuccessful [*.prod.exchangelabs.com]"
我可以使用我的代码中的凭据登录到 OWA —— 所以我知道凭据是有效的.不能通过 O356 发送电子邮件吗?是否需要在 Exchange 中进行任何特殊配置才能实现这一点?
I can use the credentials that I have in my code to log into OWA -- so I know the credentials are valid. Is it not possible to send email via O356? Is there any special configuration that has to happen in Exchange to make this possible?
这是我迄今为止尝试过的:
Here is what I've tried so far:
MailKit
var msg = new MimeMessage();
msg.From.Add(new MailboxAddress("Support","support@mydomain.com"));
msg.To.Add(new MailboxAddress("Me","me@mydomain.com"));
msg.To.Add(new MailboxAddress("External User","euser@externaldomain.com"));
msg.Subject = "Test";
msg.Body = new TextPart("plain"){
Text = "Here is a message for you"
};
using(var client = new SmtpClient()){
client.ServerCertificateValidationCallback = (s,c,h,e) => true;
client.AuthenticationMechanisms.Remove("XOAUTH2"); //Not sure what this does. Have tried with and without
client.Connect("smtp.office365.com", 587, MailKit.Security.SecureSocketOptions.StartTls);
client.Authenticate(new NetworkCredential("support@mydomain.com", "supportPwd"));
client.Send(msg);
client.Disconnect(true);
}
.Net SmtpClient 代码看起来与 MailKit 代码非常相似.
The .Net SmtpClient code looked very similar to the MailKit code.
更新
我仍然收到相同的错误消息.我们确实为我们的域用户启用了 MFA.但是，我们有一项政策，当用户从受信任的位置(我们组织的 IP)登录时，他们不需要 MFA.我还将我们的 IP 列为受信任的 IP.在我看来，MFA 不应该是这里的问题.
I'm still getting the same error message. We do have MFA enabled for our domain users. However, we have a policy that does not require MFA for users when they are signing in from a trusted location (our org's IP). I also listed our IP as a Trusted IP. In my mind, MFA shouldn't be the issue here.
我知道凭据是正确的.我从代码中复制它们并在登录 M365 时将它们粘贴到登录屏幕中——我很好地进入了.
I know the credentials are correct. I copied them from the code and pasted them in to the login screen when signing into M365 -- and I got in just fine.
我做错了什么?
是的，你可以.
Yes, you can.
用户设置:
服务器设置:https://support.office.com/en-us/article/POP-IMAP-and-SMTP-settings-for-Outlook-com-d088b986-291d-42b8-9564-9c414e2aa040p>
Server-settings : https://support.office.com/en-us/article/POP-IMAP-and-SMTP-settings-for-Outlook-com-d088b986-291d-42b8-9564-9c414e2aa040
SMTP server name smtp.office365.com
SMTP port 587
SMTP encryption method STARTTLS
https://answers.microsoft.com/en-us/msoffice/forum/msoffice_o365admin/set-up-smtp-relay-with-shared-mailbox/d7b98214-9564-432c-b098-525a98c529fb
我们的一个客户有一个使用 TYPO3 设置的时事通讯系统，我们必须为此创建一个新邮箱.但是，一个简单的就足够了:我们只分配了 Office 365 F1 许可证，而不是 Office 365 商业高级版.
A customer of ours has a newsletter system set up with TYPO3 and we had to create a new mailbox for this. However, a light one will suffice: instead of a Office 365 Business Premium we only assigned a Office 365 F1 licence.
还发现:Office365 共享邮箱可以使用 SMTP 吗?
这篇关于我可以通过 Office365 共享邮箱发送 SMTP 电子邮件吗?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！