Recipient header (To:) is not properly encoded

[MirLach]

If recipient header contains some diacritics UTF-8 characters they are not sanitized - not converted to quoted string: =?UTF-8?Q?=
From and Subject is properly sanitized. I think it is related to some $mailto / $headers['To'] changes in recent version.

It results in this error and message is undeliverable:

Diagnostic-Code: X-Postfix; SMTPUTF8 is required, but was not offered by host
    mx1.seznam.cz[77.75.76.42]

Works in Roundcube 1.2.0. does not work in 1.2.2.

[alecpl]

Works for me. Disable all plugins and try again. You can also enable smtp_debug to see what exactly is being sent to SMTP server.

[MirLach]

I forget to note - we are using PHP mail() function, not SMTP connect.
Another instance with older 1.2.0 is using SMTP TLS connection.

On October 14, 2016 6:28:50 PM CEST, Aleksander Machniak [email protected] wrote:

Works for me. Disable all plugins and try again. You can also enable
smtp_debug to see what exactly is being sent to SMTP server.

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Reply to this email directly or view it on GitHub:
#5475 (comment)

Odeslano z maleho zarizeni. Prosim omluvte mou strucnost.

[alecpl]

Ok, confirmed with mail(). I'll fix this for 1.2, but keep in mind mail() method will not be supported in 1.3.

[alecpl]

Fixed.

[MirLach]

Thank you!