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Diffstat (limited to 'doc/doc-docbook')
| -rw-r--r-- | doc/doc-docbook/spec.xfpt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index 31767bf55..0d539b095 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -9652,6 +9652,29 @@ expansion item, which extracts the working address from a single RFC2822 address. See the &*filter*&, &*map*&, and &*reduce*& items for ways of processing lists. +To clarify "list of addresses in RFC 2822 format" mentioned above, Exim follows +a strict interpretation of header line formatting. Exim parses the bare, +unquoted portion of an email address and if it finds a comma, treats it as an +email address seperator. For the example header line: +.code +From: =?iso-8859-2?Q?Last=2C_First?= <user@example.com> +.endd +The first example below demonstrates that Q-encoded email addresses are parsed +properly if it is given the raw header (in this example, &`$rheader_from:`&). +It does not see the comma because it's still encoded as "=2C". The second +example below is passed the contents of &`$header_from:`&, meaning it gets +de-mimed. Exim sees the decoded "," so it treats it as &*two*& email addresses. +The third example shows that the presence of a comma is skipped when it is +quoted. +.code +# exim -be '${addresses:From: \ +=?iso-8859-2?Q?Last=2C_First?= <user@example.com>}' +user@example.com +# exim -be '${addresses:From: Last, First <user@example.com>}' +Last:user@example.com +# exim -be '${addresses:From: "Last, First" <user@example.com>}' +user@example.com +.endd .vitem &*${base62:*&<&'digits'&>&*}*& .cindex "&%base62%& expansion item" |