Postfix Unicode Support

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Postfix SMTPUTF8 support

    http://www.postfix.org/SMTPUTF8_README.html
    Using Postfix SMTPUTF8 support. After Postfix SMTPUTF8 support is turned on, Postfix behavior will depend on 1) whether a remote SMTP client requests SMTPUTF8 support, 2) the presence of UTF-8 content in the message envelope and headers, and 3) whether a down-stream SMTP (or LMTP) server announces SMTPUTF8 support.

Postfix TLS Support

    http://www.postfix.org/TLS_README.html
    What Postfix TLS support does for you . Transport Layer Security (TLS, formerly called SSL) provides certificate-based authentication and encrypted sessions. An encrypted session protects the information that is transmitted with SMTP mail or with SASL authentication.

Postfix (software) - Wikipedia

    https://en.wikipedia.org/wiki/Postfix_(software)
    Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail.. It is released under the IBM Public License 1.0 which is a free software license.Alternatively, starting with version 3.2.5, it is available under the Eclipse Public License 2.0 at the user's option.. Originally written in 1997 by Wietse Venema at the IBM Thomas J. Watson Research Center in ...License: IBM Public License or Eclipse Public License

unicode - Configure Postfix and Dovecot-LMTP to receive ...

    https://unix.stackexchange.com/q/402684
    I am running a Postfix server which uses Dovecot LMTP for mail delivery. I am doing this because it plays well with sieve. However, I have gotten some email lately with Unicode in the subject lin...

International email - Wikipedia

    https://en.wikipedia.org/wiki/International_email
    International email arises from the combined provision of internationalized domain names (IDN) and email address internationalization (EAI).The result is email that contains international characters (characters which do not exist in the ASCII character set), encoded as UTF-8, in the email header and in supporting mail transfer protocols. The most significant aspect of this is the allowance of ...

The Postfix Home Page

    http://www.postfix.org/
    The Postfix Home Page. All programmers are optimists -- Frederick P. Brooks, Jr. . First of all, thank you for your interest in the Postfix project. What is Postfix? It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Now at Google, Wietse continues to support Postfix.

unicode - non-ascii email addresses and SMTP - Stack Overflow

    https://stackoverflow.com/questions/14777792/non-ascii-email-addresses-and-smtp
    As for the Unicode: percent-encoding is a URI thing only and there's no reason to expect it would work anywhere in an email address.. RFC6531 extends SMTP to "international" characters. It's about as clear as any other email-related RFC, but it sounds like you can use UTF-8 in a local-part, and either the receiving server will understand it via the SMTPUTF8 extension or...

unicode - Configure Postfix and Dovecot-LMTP to receive ...

    https://unix.stackexchange.com/questions/320091/configure-postfix-and-dovecot-lmtp-to-receive-mail-via-smtputf8
    I am running a Postfix server which uses Dovecot LMTP for mail delivery. I am doing this because it plays well with sieve. However, I have gotten some email lately with Unicode in the subject line. This mail is received OK by Postfix, which clearly supports SMTPUTF8 - however, it dies when it gets to LMTP:



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