Feedback Loop Control unauthenticated mail from your domain Monitor outgoing email with Postmaster Tools Gmail SMTP errors and codes

SMTP：用来发邮件的（在RFC上代号2821） IMAP：用来收邮件的（在RFC上代号1730） 还有一个POP3协议，也是用来收邮件的， 是IMAP协议的前身，但支持功能较少，现在基本没用了 …

透過 Google 伺服器設定 SMTP 轉發服務的地端部署電子郵件伺服器 如果貴組織使用 Microsoft Exchange 或其他 SMTP 服務或伺服器，您可以設定 SMTP 轉發服務，透過 Google 轉送外寄 …

gsmtp (Google SMTP) is added to all errors. gcdp (Google Custom Domain Policies) is added to errors resulting from customized rules created by a Google Workspace administrator.

You have 3 options for setting up email with a printer, scanner, or app based on what your device or app supports: Option 1: Send email with SMTP relay (recommended) Option 2: Send email …

2、Exchange ActiveSync Exchange Server支持SMTP、POP3、IMAP4等多种电子邮件协议，当然我们也设计自己的协议并得到大量厂商的支持，那就是Exchange ActiveSync。 Exchange …

Como administrador, puedes configurar dispositivos y aplicaciones para enviar correo electrónico a través de Google Workspace. Configura Gmail para enviar correos desde impresoras y …

Cet article s'adresse aux administrateurs Google Workspace qui souhaitent envoyer des e-mails à partir d'appareils ou d'applications de leur organisation ou de leur domaine. Si vous êtes un …

Gmail's SMTP server is smtp.gmail.com, port 465, SSL. Use your full email address as the username. If your email program supports modern authentication (OAuth2), use that. If not, …

Reply codes The SMTP reply codes refer to specific parts of the email service, and can indicate issues like: The intended recipient isn't registered with the service. The message was marked …