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public:emai:geninfo [2021-06-08 13:54] – vesely | public:emai:geninfo [2024-04-22 08:39] (current) – vesely | ||
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====== Email at CERGE-EI in general ====== | ====== Email at CERGE-EI in general ====== | ||
+ | ===== Email Related Guidelines ===== | ||
+ | |||
+ | **CUNI Guideline – Use of private e-mail addresses**: | ||
+ | |||
+ | In principle: | ||
+ | < | ||
+ | |||
+ | **…o**// | ||
+ | |||
+ | Conclusion: If you get work email from non-institutional email address (like google.com, seznam.cz, post.de, outlook.com, | ||
+ | |||
+ | ===== Important Recommendations ===== | ||
+ | |||
+ | **Never use your login name as your email address** - use format // | ||
+ | |||
+ | **Use __different password__ for email account and network account** - passwords to email accounts are usually stored at several places (email clients) so it is much easier to reveal these. If passwords are the same, attacker gain access to all your account. | ||
===== Email Services Limitations ===== | ===== Email Services Limitations ===== | ||
Line 21: | Line 37: | ||
==== Maximal size of Email Message ==== | ==== Maximal size of Email Message ==== | ||
+ | //!!! Please note, that base64-encoded files are usually about 137% the size of the original files.// | ||
=== Emails from/to CERGE-EI === | === Emails from/to CERGE-EI === | ||
- | Maximal size of email message including attachments is 10 MB | + | Maximal size of email message including attachments is about 20 MB |
=== Emails sent internaly === | === Emails sent internaly === | ||
- | Maximal size of email message including attachments is 20 MB | + | Maximal size of email message including attachments is about 20 MB |
==== Attachment filtering ==== | ==== Attachment filtering ==== | ||
- | Some attachments are <font inherit/ | + | Some attachments are |
+ | <font inherit/ | ||
* **Executable files** | * **Executable files** | ||
* **Encrypted archives (password protected)** | * **Encrypted archives (password protected)** | ||
- | Emails containing disallowed content are rejected. | + | Actions: |
+ | |||
+ | * Emails containing disallowed content | ||
+ | * **Password protected files are removed** | ||
+ | < | ||
+ | They may contain malicious code, ransomware, viruses. \\ | ||
+ | Don't open any file unless you are certain it's legitimate. \\ | ||
+ | If not sure or have questions, contact helpdesk@cerge-ei.cz</ | ||
+ | |||
+ | ===== Quarantine access ===== | ||
+ | |||
+ | Ironport sends hourly digest about new quarantined messages | ||
+ | |||
+ | It is practical to keep the link to your personal quarantine page for future use (link: View All Quarantined Messages) | ||
- | Password protected files are stripped from the message. | + | for details go to [[: |
- | Original message is eventualy placed to the quarantine where you may release it. | + | {{: |