About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

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How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

你可以使用随时可用的签名库模板创建电子邮件签名。 只需获取模板，将所需签名复制到电子邮件中并对其进行个性化设置，即可创建自己的 Outlook 签名。 观看视频，了解作方法。 从模板开始 下载电子邮件签名库模板。 下载模板后，在 Word 中将其打开。 选择喜欢的任何签名，选择签名中的所有 ...

与客户沟通品牌的一种好方法是让企业中的每个人都使用专业电子邮件签名。 可以从电子邮件签名模板开始，使用公司名称、徽标和颜色对其进行更新，并与员工共享。 品牌签名可增加通信的可信度和可信度。 我将学到什么？ 如何创建具有品牌的专业电子邮件签名 如何与我的企业中的其他人共享 ...

摘要 Email签名在业务通信中创造专业一致性，并确保收件人在每封邮件中都有你的联系信息。 在Outlook 中，可以设置多个签名， (内部与外部、个人与业务) 的不同用途，并选择是自动将其包含在新的电子邮件、答复还是转发中。 签名可以包括文本、链接、图片和图像 (，例如手写签名或徽标 ...

Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...

A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.