SMTP 错误:454 4.7.0 登录尝试次数过多，请稍后再试

本文介绍了SMTP 错误:454 4.7.0 登录尝试次数过多，请稍后再试的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我已经使用 gmail 帐户设置了 SMTP 服务器.直到几天前它都运行良好.当我检查日志时，我在其中发现了以下条目:

I have set up SMTP server with gmail account. It was working fine till few days back. When I checked the logs I found below entry in it:

SMTP Error: 454 4.7.0 Too many login attempts, please try again later.

我已重新启动 SMTP 服务两次.我已经检查了使用 此 链接.一切都和我们设置的一样.我已经重新启动了 SMTP 服务器 &机器也是.

I have restarted SMTP service twice. I have checked the configuration that was set up using this link. Everything is same as we have set up. I have restarted the SMTP server & the machine too.

我已检查两步验证设置.它没有启用.我检查了不太安全"的应用程序设置，并按照建议将其设置为启用"此处.

I have checked for 2 step verification settings. It is not enabled. I have checked for "less secure" apps settings and it is set to Enabled as suggested here.

我已按照建议启用了应用程序 此处 使用以下链接.

I have checked apps enabled as suggested here using below link.

security.google/settings/security/permissions?pli=1

但没有添加任何应用程序.任何人都可以建议我需要寻找的东西吗?提前致谢.

But no apps are added. Can anyone suggest anything that I need to look for? Thanks in advance.

推荐答案

问题已解决，SMTP 服务器的出站连接设置中的 TCP 端口从 25 更改为 587.

The Issue resolved with the TCP port changing to 587 from 25 in Outbound Connections settings in SMTP Server.