Simple Fast Secure Email Client For Mac Os X



Simple

Mail User Guide

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Email messages that are digitally signed or encrypted can offer enhanced security when sending or receiving email.

Send digitally signed and encrypted emails

A digitally signed message lets your recipients verify your identity as the sender; an encrypted message offers an even higher level of security. To send signed messages, you must have a personal certificate in your keychain. To send encrypted messages, the recipient’s certificate must be in your keychain.

  1. In the Mail app on your Mac, choose File > New Message.

  2. Move the pointer over the From field, click the pop-up menu that appears, then choose the account for which you have a personal certificate in your keychain.

    A Signed icon (containing a checkmark) in the message header indicates the message will be signed when you send it.

  3. Address the message to recipients.

    An Encrypt (closed lock) icon appears next to the Signed icon if your keychain contains a personal certificate for every recipient; the icon indicates the message will be encrypted when you send it.

    If you don’t have a certificate for every recipient, you must send your message unencrypted. Click the Encrypt icon to replace the closed lock icon with an open lock icon.

Some mailing lists reject digitally signed messages because the signature is treated as an attachment. To send the message unsigned, click the Signed icon in your message; an x replaces the checkmark.

Note: If for some reason your certificate isn’t associated with your email address, or if you want to use your certificate with a different email address, Control-click the certificate in Keychain Access, choose New Identity Preference, and provide the requested information.

Receive digitally signed and encrypted emails

In the Mail app on your Mac, a Security field in the header area indicates whether a message is signed or encrypted.

  • A signed icon (a checkmark) appears in the header area of a signed message. To view the certificate details, click the icon.

    If the message was altered after it was signed, Mail displays a warning that it can’t verify the message signature.

  • Cat equipment serial number lookup. A lock icon appears in the header area of an encrypted message. If you have your private key in your keychain, the message is decrypted for viewing. Otherwise, Mail indicates it can’t decrypt the message. See If Mail can’t decrypt emails.

If you want to include encrypted messages when you search for messages in Mail, set the option in the General pane of Mail preferences. The option enables Mail to search individual words, even though the message is stored encrypted.

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See alsoUse personal certificates in Mail on MacUse SSL to connect to the outgoing mail server in Mail on Mac

Simple Fast Secure Email Client For Mac Os Xp

  • [SERVER MAINTENANCE] The services on the site will be unavailable from Thu, 26 Nov 2020 11:00 (JST) until 13:00 for server maintenance. Sorry for inconvenience.
  • 05 Jun 2020 About the SSL certificates included in Sylpheed 3.7 (Windows) (2)
  • 02 Jun 2020 About the SSL certificates included in Sylpheed 3.7 (Windows)
  • 31 Jan 2018 Sylpheed 3.7 (stable) has been released.
  • 18 Jan 2018 Sylpheed 3.7beta1 (development) has been released.
  • 29 Jun 2017 Sylpheed 3.6 (stable) has been released.
  • 29 Jun 2017 The Windows binary module of Automatic Attachment Encryption Plug-in sylpheed-autoenc-plugin is available.
  • 12 Jun 2017 Sylpheed 3.6beta1 (development) has been released.
  • 29 Jul Sylpheed 3.5.1 (stable) has been released.
  • 25 Jan Sylpheed 3.5 (stable) has been released.
  • 13 Jan A generic spam filter tool SylFilter 0.7 has been released.
  • 06 Jan Official announcement of bug tracking system
  • 11 Aug Request for the update of PGP public key

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client.

Sylpheed provides intuitive user-interface. Sylpheed is also designed for keyboard-oriented operation, so Sylpheed can be widely used from beginners to power users.

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Sylpheed runs on many systems such as Windows, Linux, BSD, Mac OS X and other Unix-like systems.

Sylpheed uses GTK+ GUI toolkit. The newest version of Sylpheed works with GTK+ 2.4 or later (2.6 or later is recommended).

Simple Fast Secure Email Client For Mac Os X

Sylpheed is a free software distributed under theGNU GPL(the library part is GNU LGPL).You can freely use, modify and redistribute it under the license.

Sylpheed has the following features.Read more..

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  • Simple, beautiful, and well-polished user interface
  • Comfortable operationality which is built in detail
  • Well-organized, easy-to-understand configuration
  • Lightweight operation
  • High reliability with one-mail-corresponding-to-one-file format
  • Extensibility by plug-in faculty
  • Powerful filtering and search
  • Junk mail control
  • Security features (GnuPG, SSL/TLSv1)
  • Various protocols support
  • Internationalization and Multilingualization support
  • High-level Japanese processing
  • Flexible cooperation with external commands
Please send your comment and/or bug report toHiroyuki Yamamoto <hiro-y at kcn.ne.jp>.
My PGP public key (Old PGP public key)