Question 1

What is a VMC certificate?

Accepted Answer

A VMC (Verified Mark Certificate) is a digital certificate that allows organizations to display their brand logo in email clients that support BIMI (Brand Indicators for Message Identification). It provides cryptographic proof that the logo is authorized by the brand owner.

Question 2

Which Certificate Authorities issue VMC certificates?

Accepted Answer

VMC certificates are issued by five authorized Certificate Authorities: DigiCert, Entrust, Sectigo, GlobalSign, and SwissSign. These CAs are approved by the AuthIndicators Working Group.

Question 3

How long does a VMC certificate last?

Accepted Answer

VMC certificates are typically valid for 1 year. Organizations must renew their certificates before expiration to maintain BIMI logo display in email clients.

Question 4

What is BIMI?

Accepted Answer

BIMI (Brand Indicators for Message Identification) is an email specification that allows organizations to display their brand logo next to authenticated emails in supported email clients. It requires DMARC enforcement and a VMC certificate.

Question 5

How do I get a VMC certificate?

Accepted Answer

To obtain a VMC certificate, you need to: 1) Have a registered trademark for your logo, 2) Implement DMARC with enforcement policy (quarantine or reject), 3) Apply for a VMC certificate from an authorized CA, 4) Publish your BIMI record in DNS.

常见问题

什么是 BIMI，为什么我的组织应该使用它？

VMC 证书如何保护我的品牌免受电子邮件钓鱼攻击？

VMC 证书和 CMC 证书有什么区别？

使用 VMC 证书实现 BIMI 需要多长时间？

在实施 BIMI 之前是否需要配置 DMARC？

哪些电子邮件提供商支持 BIMI 徽标显示？

与 BIMI 和 VMC 实施相关的费用有哪些？

BIMI 能否提升我的电子邮件送达率和打开率？

如果我的 VMC 证书过期，会发生什么？

BIMI 与 SPF、DKIM 等其他电子邮件认证标准有什么关系？

VMC 证书监控如何运行？

您监控哪些证书颁发机构？

我可以监控我组织的证书吗？

如何检查我的域是否配置了 BIMI？

实施 BIMI 的要求有哪些？