Jasen Betts via Exim-users wrote on 13.04.2023 10:07:
> On 2023-04-12, Victor Ustugov via Exim-users <[email protected]> wrote:
>> Slavko via Exim-users wrote on 12.04.2023 20:42:
>>> Dňa 12. apríla 2023 16:50:29 UTC používateľ MRob via Exim-users
>>> <[email protected]> napísal:
>>>> Hi, I have a variable to extract the email address in from header set like
>>>> this:
>>>>
>>>> ${lc:${address:$h_From:}}
>>>
>>> Header is valid, but after decoding it contains comma without
>>> qoutes, the comma is address separator and thus results in
>>> list of two "addresses", first without valid address, thus empty...
>>>
>>> Use raw header for address extracting -- $rh_From: that works
>>> for both, quoted and encoded content...
>>
>>
>> What about the colon without encoding?
>>
>> From: =?utf-8?Q?My=20Bizness:=20Inc.?= <[email protected]>
>
> yes, the colon breaks it. it's not a valid from header.
I know. But email clients correctly display the From header shown above.
And it is quite possible to get such a header in an incoming email.
> RFC5322 is a bit of a rabbit hole to dive into.
>
> but the short story is none of these should be used in "bare" names
>
> specials = "(" / ")" / ; Special characters that do
> "<" / ">" / ; not appear in atext
> "[" / "]" /
> ":" / ";" /
> "@" / "\" /
> "," / "." /
> DQUOTE
>
> except where there is specific permission given
>
>
> Easiest fix for the sender is to use quotes.
>
> From: "=?utf-8?Q?My=20Bizness:=20Inc.?=" <[email protected]>
in order to insert double quotes, I need to separate the From header
into the address and the part of the header that comes before it. Why do
I need to add quotes if I have already determined which part of the
header is the address?
--
Best wishes Victor Ustugov
mailto:[email protected]
public GnuPG/PGP key: https://victor.corvax.kiev.ua/corvax.asc
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