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E-mail Apple Mail Thunderbird Writing/sending emails
A letter arrived from White Goat Black Goat gobbled it up unread Nothing for it but to write a letter right back I'm sorry, what was it that your letter said? The above translation is taken from the blog of by Matt Treyvaud http://no-sword.jp/blog/2009/10/goat_mail.html
“Goat Mail” (Yagi-san yuubin) is a very popular Japanese children’s song
A method of exchanging digital messages using digital devices. Store-and-forward system. Mainly used for communications via computer networks. Historically, one of the services available via the Internet.
The following 4 main steps can be identified:
Writing a message
To: Mr. Black Goat From: Mr. White Goat
Sending server Server to process the message Receiving server Receiving the message Relaying server Relaying server Relaying server
Writing a message
To: Mr. Black Goat From: Mr. White Goat
Sending server Server to process the message Receiving server Receiving the message Relaying server Relaying server Relaying server
Writing a message I do not know this sending server! Receiving server Receiving the message Relaying server Relaying server Relaying server
To: Mr. Black Goat From: Mr. White Goat
Writing a message
To: Mr. Black Goat From: Mr. White Goat
Sending server Receiving server Receiving the message Relaying server Relaying server Relaying server
The sender is suspicious! I will deny to transmit, because (s)he did not pass authentication.
Writing a message
To: Mr. Red Goat From: Mr. White Goat
Sending server Receiving server Receiving the message Relaying server Relaying server Relaying server
What? There is no Red Goat at this address!
Writing a message
Sending server Receiving server Receiving the message Relaying server Relaying server Relaying server I do not know this receiving server!
To: Mr. Black Goat From: Mr. White Goat
Writing a message Sending server Receiving server Receiving the message Relaying server Relaying server Relaying server
This receiver is suspicious! I will deny to transmit, because (s)he did not pass authentication.
To: Mr. Black Goat From: Mr. White Goat
Writing a message Sending server Receiving server Relaying server Receiving the message Relaying server Relaying server
To: Mr. Black Goat From: Mr. White Goat
Dear customers, we are sorry to inform you that today, due to maintenance/malfunction/overload the mailing system is out of order.
Mozilla Thunderbird Thunderbird is a free e-mail software, which is available for Mac, Windows, and Linux Apple Mail Available on MacOS and iOS (available in English here in TokyoTech)
Follow the configuration procedures very precisely, when installing Thunderbird on your personal computer. Remember that you first need to download and install the Thunderbird software on your PC.
Detailed information/tutorial available from Tokyo Tech Portal: choose “Online guides” → “Setting up e-mail applications”
Instructions available for Thunderbird, Outlook, and Mail.
Synchronization with e-mail server (also for folders, tags, etc.) Convenient for high-speed networks, for use with smartphones
Do not use it! Messages are download to your computer/phone and removed from the server, Thus the messages are not available anymore from webmail or another device. It was (maybe) good when using a single device, but not convenient anymore!
Specific to TokyoTech. You do not need such ID for your private email accounts (gmail, yahoo, …)
Select “Other Mail Account” Note: You can also use for your private email and then choose Google/Yahoo/…
Name: Choose a meaningful name! (not a funny nickname) E-mail address: Input your TokyoTech address (In the form: ****.*.**@m.titech.ac.jp) Note: When clicking “Sign In”, there will be a warning/error. It is normal. Apple Mail does not know details about Tokyo Tech servers.
User Name: TokyoTech mail auth ID Note: Usually username and email address is the same. But not in TokyoTech. Note: In Thunderbird, it is necessary to provide more information: port numbers
list of messages content of message
...
folders to order messages
Possible to configure many options You can check more by yourself
Very similar to Apple Mail. Roughly same information needed, but:
It is fast
No need to login to Tokyo Tech portal Check how fast the Inbox opens – vs Tokyo Tech Webmail
Multiple accounts can be handled (working, home, etc.) Advanced folder handling Advanced customization, including themes (skins)
The message will be sent to the address(es) written in the following fields:
To – Main destination CC – Carbon Copy BCC – Blinded Carbon Copy
Typically, one receives a few dozens e-mails a day. E-mail messages are typically “long” (a few paragraphs). Use your Tokyo Tech e-mail account (also from your smartphone) when communicated to the faculty members. Remember to configure your account to show your real name.
When composing your message, add the subject that summarizes the contents and/or the topic of your letter. Always begin your message with the name of the person, whom you are referring to. When writing for the first time, state your name, the student number, the class, followed by the contents of your inquiry.
Thank you for all your messages!
Thank you for all your messages!
The main purpose of your Tokyo Tech e-mail account is to support your communications on the topics related to your studies. In particular, it will be used by Tokyo Tech for:
Notifications of cancelling classes (for instance, in the case of influenza
Providing supplementary materials for classes Announcements from Student Support Division Etc.
Check regularly, once per day
IMAP + SSL/TLS POP3 + SSL/TLS SMTP + SSL/TLS IMAP (and POP3) are the protocols for incoming e-mail SMTP is the protocol for outgoing e-mail But what is SSL/TLS?
Authentication failure: A fake mail-server may try to pose as
the Tokyo Tech mail-server to steal users’ messages.
Information leakage: The communication over the network is intercepted,
causing the leakage of username and password, so that the account may be hijacked.
Tampering: The messages sent and received by the user may be changed in the
process of transmission, and also fake messages can be inserted.
Authentication: Identity of the e-mail server is certified and confirmed. Encryption: Communication with the server is encrypted. Tamper resistance: Keyed cryptographic hash functions are used as checksums.
Secure communication between web browsers and web servers
Authentication (certificate verification) Confidentiality (encryption) Integrity (tampering detection)
Do not trust the message header Attached files: Careful! They are potentially dangerous! Visiting malicious websites: Careful! Do not click just any link, as it may be dangerous! (Your PC may get infected by malware just by visiting a malicious website.) Automatic opening of multimedia data (photos, videos, etc.) is potentially dangerous!
These are two recently received messages
This cannot be right!
I have never heard
If a valid digital signature is included, we can trust the message, right?
This is too informal for the bank!
These expressions look strange
Why are they first talking about authorization, but then suggest me to register?
At the first glance, this message is from Resona Holdings, but if you just check, the link is pointing to a mysterious address www.v-i-p8.com
(a closer look shows that this is a company located outside Japan)
E-mail system – computer analogue of postal mail. Handled using e-mail software, some of which is free. (Thunderbird as an example.) Software must be (downloaded, installed), and configured prior to use. IMAP is the recommended e-mail protocol.
Various options can be used when composing and sending messages. In particular, copies of the same message can be sent to several addresses at once (To:, Cc:, Bcc:). Basic etiquette must be followed when writing e-mails. Security settings guarantee protection against unauthorized access to your private information (SSL/TLS). On top of this, measures must be taken to prevent phishing and other illegal activities.
Your answers should be submitted via the Google Form: https://forms.gle/u8wqLM7WgbLj1Ssj6 (link also on the website). To be completed by May 24, 23:59. You are allowed to submit your answers multiple time, the last submission before the deadline will be considered final. This test is mandatory – it is a part of your course evaluation. NB: Depending on the settings of your browser, some text in the above form may appear in Japanese. In any case, write your answers in English.