The maximum allowable length of an email address is 320 characters. (RFC 3696) The top level domain must be all alphabetic. (RFC 3696, section 2) RFC 2822 This RFC supersedes RFC 822, which governs email exchange through SMTP. addr-spec = local-part "@" domain local-part = dot-atom ...
// Check for unmatched characters array_multisort($matchesIP[1], SORT_DESC); if ($matchesIP[1][0] !== '') return false; // Illegal characters in address // It's a valid IPv6 address, so... return true; } else { // It's a domain name... // The syntax of a legal Inter...
把Address转换成一个RFC822/ RFC2047编码的String。 String toUnicodeString() Returns a properly formatted address (RFC 822 syntax) of Unicode characters. 返回一个Unicode字符格式的地址(RFC822语法)。 静态方法 1.转换 static String toString(Address[] addresses) Convert the given array of InternetAddress ...
(SUPA) 中文翻译 RFC 8327: Mitigating the Negative Impact of Maintenance through BGP Session Culling 中文翻译 RFC 8326: Graceful BGP Session Shutdown 中文翻译 RFC 8325: Mapping Diffserv to IEEE 802.11 中文翻译 RFC 8324: DNS Privacy, Authorization, Special Uses, Encoding, Characters, Matching, and...
Standards Track [Page 5] RFC 6532 Internationalized Email Headers February 2012 ASCII, octets and characters are effectively the same, but this is not true in UTF-8.) The 78-character limit remains defined in terms of characters, not octets, since it is intended to address display width ...
10. The maximum length of MAIL and RCPT command lines is increased by 460 characters by the possible addition of the ALT-ADDRESS keyword and value. 10. 通过可能添加ALT-ADDRESS关键字和值,MAIL和RCPT命令行的最大长度增加了460个字符。 11. The UTF8SMTP extension is valid on the submission port...
By default, message header field parameters in Hypertext Transfer Protocol (HTTP) messages cannot carry characters outside the ISO- 8859-1 character set.defines an encoding mechanism for use in Multipurpose Internet Mail Extensions (MIME) headers. This document specifies an encoding suitable for use...
If an email message (modern or legacy) is assigned an address header that is pre-encoded with RFC 2047, calling as_bytes(policy=default) can generate an invalid address header. The resulting header may include unquoted RFC 5822 special characters in a way that can alter its meaning. Here is...
There are considerations for internationalized email addresses in the envelope as well as in header fields of redistributed messages. In particular, an internationalized message cannot be downgraded unless all envelope addresses are available in ASCII (that is, each address either is ASCII or has an ...
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