I see a paper clip icon next to a message, but when I open it, the attachment is gone.
My attachment is missing.
The shortcut I sent to others has disappeared from their messages.
Unavailable menu commands
The View Attachments command on the shortcut menu is unavailable.
The Save Attachments command on the File menu is unavailable.
Encrypting and digitally signing messages
I can't send an encrypted message.
The digital signature on a message I received is not valid and not trusted.
There can be several reasons why the digital signature is not valid and not trusted. For example, the sender's certificate (certificate: A digital means of proving your identity. When you send a digitally signed message you are sending your certificate and public key. Certificates are issued by a certification authority, and like a driver's license, can expire or be revoked.) may have expired, it may have been revoked by the certificate authority (CA) (certificate authority (CA): An entity, similar to a notary public, that issues digital certificates, keeps track of who is assigned to a certificate, signs certificates to verify their validity, and tracks which certificates are revoked or expired.), or the server that verifies the certificate may be unavailable. Contact the sender of the message.
My message format changed when I sent a digitally signed message.
If you are using Rich Text Format for messages, and you send a digitally signed message, the message format is changed to HTML to help ensure correct processing of the security code. Some formatting may be lost in the conversion.
I receive a message when I try to send encrypted or digitally signed e-mail.
- If you receive the message: "The Security Policy you selected does not allow one of the certificates in this security profile to be used," it means that the certificate in your default security settings has expired or has otherwise become invalid, or that your security policy does not accept your certificate. If you have set your security options to use labels on every message you send, the automatic configuration will not automatically notify you that your certificate has become invalid. To makes sure that the automatic configuration notifies you of problems with your default certificates, on the Tools menu, click Options, and then click the Security tab. Click Settings, and then click Security Labels. In the Policy module list, click None. If your security system does not allow you to choose None, contact your system administrator to get the correct certificates for your system.
- If you receive the message: "Microsoft Outlook had problems encrypting this message because the following recipients had missing or invalid certificates, or conflicting or unsupported encryption capabilities," the most common cause is that you tried to send encrypted messages without having a copy of a valid certificate (certificate: A digital means of proving your identity. When you send a digitally signed message you are sending your certificate and public key. Certificates are issued by a certification authority, and like a driver's license, can expire or be revoked.) for the recipient. If you have multiple contacts for the recipient, you must send a message using the contact that has the certificate.
I sent a message with an S/MIME receipt request but received no return receipt.
My security label settings have disappeared from Microsoft Outlook.
The security label settings aren't available.
- You must have a security policy module installed. For more information, contact your system administrator.
- You must digitally sign the message. In the message, on the File menu, click Properties, and then click the Security tab. Select the Add digital signature to message check box.
- If the privacy mark, classification, or other settings are not available, it may be because of settings specific to the policy module. For more information, contact your system administrator.
- You must be using S/MIME (S/MIME: Secure Multipurpose Internet Mail Extensions (S/MIME) is a specification for secure e-mail messages that uses the X.509 format for digital certificates and uses various encryption algorithms such as 3DES.) as your default security format. To change your default security format, on the Tools menu, click Options and then click the Security tab. Click Settings, and then in the Cryptographic format list, click S/MIME.
I can't publish my certificates to the Global Address List.
I can't send an S/MIME receipt request.
Recipients of my labeled messages can't open the message.
I'm having problems synchronizing my Handheld PC or cell phone.
When you synchronize your Handheld PC, mobile phone, or other device, you will be prompted to allow the program to access your Address Book (Address Book: The collection of address books that you can use to store names, e-mail addresses, fax numbers, and distribution lists. The Address Book may contain a Global Address List, an Outlook Address Book, and a Personal Address Book.) and contacts. Because viruses can spread by sending copies of e-mail messages to people listed in your Address Book, Microsoft Outlook e-mail security prevents programs from programmatically accessing your Address Book and contacts. Before the synchronization can continue, you must allow access to your Address Book. You can allow unsecured access for a specific instance (such as for one contact) or for a specified time period of up to 10 minutes.
You may also receive error messages while synchronizing or when sending e-mail from some Handheld PCs.
None of the Microsoft ActiveX Controls, Java applets, or scripts I receive in HTML e-mail messages work.
Your security zone setting is set to the highest security level by default, which disables all active content in HTML messages.