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Although not strictly required, UTF-8 is usually also transfer encoded to avoid problems across seven-bit mail servers. MIME transfer encoding of UTF-8 makes it either unreadable as a plain text (in the case of base64 ) or, for some languages and types of text, heavily size inefficient (in the case of quoted-printable ).
A spy pixel is an image file that is deliberately made small, often of a single pixel and of a colour that makes it "impossible to spot with the naked eye even if you know where to look." [ 1 ] Any email user can be reached via email tracking due to the open nature of email.
If the data is Base64-encoded, then the data part may contain only valid Base64 characters. [7] Note that Base64-encoded data: URIs use the standard Base64 character set (with '+' and '/' as characters 62 and 63) rather than the so-called "URL-safe Base64" character set. Examples of data URIs showing most of the features are:
The first was a five-minute outage of every Google service in August 2013. The second was a 25-minute outage of Gmail, Google+, Google Calendar, and Google Docs in January 2014. The third was a YouTube outage in October 2018. The fourth was a Gmail/Google Drive outage in August 2020. The fifth, in November 2020, affected mainly YouTube, and the ...
Base64 is particularly prevalent on the World Wide Web [1] where one of its uses is the ability to embed image files or other binary assets inside textual assets such as HTML and CSS files. [2] Base64 is also widely used for sending e-mail attachments, because SMTP – in its original form – was designed to transport 7-bit ASCII characters ...
If possible, ask the sender to resend the message to see if you can get the message a second time. Check for emails in your Spam folder. If you find emails in your Spam folder that don't belong there, you'll need to mark the messages as "not spam." 1. Sign in to AOL Mail. 2. Click the Spam folder. 3. Select the message that isn't spam. 4.
Originally, ARPANET, UUCP, and Internet SMTP email allowed 7-bit ASCII text only. Text files were emailed by including them in the message body. In the mid 1980s text files could be grouped with UNIX tools such as bundle [1] [2] and shar (shell archive) [3] and included in email message bodies, allowing them to be unpacked on remote UNIX systems with a single shell command.
A uuencoded file starts with a header line of the form: begin <mode> <file><newline> <mode> is the file's Unix file permissions as three octal digits (e.g. 644, 744). This is typically only significant to Unix-like operating systems. <file> is the file name to be used when recreating the binary data.