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

This article is for Google Workspace administrators who want to send email from devices or apps in their organization or domain. If you're a Gmail user who wants to send email from a device or app, contact …

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.

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 轉送外寄郵件。 …

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 as spam or as …

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, you will need to get an …

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 utilisateur …

If your organization uses Microsoft Exchange or another SMTP service or server, you can set up the SMTP relay service to route outgoing mail through Google. You can use it to: Filter messages for …

Exchange Server支持多种电子邮件网络协议，如SMTP、POP3、IMAP4。 Exchange Server能够与微软公司的活动目录完美结合。 Exchange Server是个消息与协作系统，Exchange server可以被用来构 …

Jan 9, 2025 · The SMTP server for all Gmail accounts is smtp.gmail.com, port 465, SSL. Use the full email address as the username. If your email program supports it, use OAuth2 authentication. If not, …