From address is ill formed. Really?

[alevesely]

From: Alessandro Vesely <vesely@tana.it>, 2nd name <user@example.com>

I think the add-on complaints about multiple mailboxes, which are allowed by RFC5322. It displays From address is ill formed. (For obscure reasons, DMARC does not consider this case, but DKIM says nothing about that, IIRC). The Authentication-Results: header said dkim=pass. Error console says:

Promise rejected after context unloaded: Actor 'Conduits' destroyed before query 'RuntimeMessage' was resolved [displayAction.mjs.js:45](moz-extension://694bf5d4-0ccd-4013-88d6-a4fdb3a218aa/content/displayAction.mjs.js)
    triggerDisplayAction moz-extension://694bf5d4-0ccd-4013-88d6-a4fdb3a218aa/content/displayAction.mjs.js:45

DKIM_Verifier.AuthVerifier	ERROR	 Parsing of from header failed <unavailable> [authVerifier.mjs.js:133:8](moz-extension://694bf5d4-0ccd-4013-88d6-a4fdb3a218aa/modules/authVerifier.mjs.js)
    verify moz-extension://694bf5d4-0ccd-4013-88d6-a4fdb3a218aa/modules/authVerifier.mjs.js:133
​

[lieser]

The From header is probably valid, as not handling mailbox-list is a known limitation.
Never saw such an headed, so hoped I could get away with not handling it.

Will try to fix this in the next version.

[lieser]

The issue should be fixed. Note that I decided to simply ignore all but the first address for e.g. the sign rules. By default Thunderbird seems to also only display the first address.

[alevesely]

I agree that's the simplest way to treat it. Some argue that, in the rare cases where multiple authorship is needed, the order can be important. In such cases, it is necessary that the message be actually sent by the first author.

Thanks for the fix.