<winmaildemo@gmail.com>, remote server said:550-5.7.1 [111.140.xxx.xxx 12] Our system has detected that this message is 550-5.7.1_likely_unsolicited mail. To reduce the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked. Please visit 550-5.7.1 http://support.goo...
To best protect our users from spam, the message has been blocked. Please visit https://support.google.com/mail/answer/188131 for more information. u22si16671234pfl.244 - gsmtp “550” errors are permanent failures. You will have to take some action before Gmail removes your server’s IP...
你发的信被拒收，检查邮件地址是否正确。收信服务器可能需要身份认证之类的。Proper authentication required
Dec 25, 2024 Email Deliverability TOP 8 Email Deliverability Tools To Maximize Email Performance Piyush Patel Nov 29, 2024 Email Deliverability How to Stop Emails Going to Spam in Gmail? Anil Salvi Nov 22, 2024 By Industry By Need Outbound Sales ...
是一封退信 这个是一个自动回复机器给你发送的。大意就是这是一个警告的信件，你不需要回复你受到的信件，信件没有发送成功
This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: jaoma...@gmail.com host gmail-smtp-in.l.google.com [2607:f8b0:4004:c07::1b...
I'm afraid I wasn't able to deliver your message to the following addresses.This is a permanent error; I've given up. Sorry it didn't work out.<blabhlahblgmail.com>:64.233.185.114 does not like recipient.Remote host said: 550 5.7.1 No such user 15si841856wrlGiving up on 64.233....
I get this error message: “Delivery to the following recipient failed: [name deleted]@gmail.comThe error returned from the remote server is/was:550-5.7.26 This message does not have authentication information or fails to Message internal id: wkdFnp34azNxqwkdInlkni” 2 years ago 3830 1 ...
这是用邮箱客户端才会出现的提示。把foxmail邮箱客户端卸载，重新安装foxmail或梦幻快车 就一定OK。我们企业几十个邮箱，这问题太常见！实在不行，就先登陆网页版的邮箱临时发送一下
public override IEnumerable<IMailMessage> InternalFetchMessages() { EnsureClientConnected(); var folders = GetFolders(); } protected void EnsureClientConnected() { if (UserDisconnected) throw new ClientDisconnectedException(); if (IsConnected) { NoOp(client); return; } if (!IsConnected) client....