Re: [Fetchmail-users] Fetchmail 6.3.26-6 Corrupting Group Address Headers.

[Ralph C. <ra...@in...>]

Hi Matthias,

> > I used fetchmail 6.3.26-6
...
> >     About to rewrite To: group-addr: ;, ra...@ex......
> >     ...rewritten version is To: group-addr: ;@ruis.pair.com, ra...@ex....
>
> Please file a proper report.
> <http://www.fetchmail.info/fetchmail-FAQ.html#G3>

No, sorry, you haven't made clear what's lacking and I've already spent
too much time trying to find out how to report a bug;  that shouldn't be
buried in the FAQ.

It seems very likely from looking at fetchmail-6.3.26.tar.xz's
rfc822.c's reply_hack() that this section kicks in erroneously.

	/*
	 * Not expanding on last non-WS == ';' deals with groupnames,
	 * an obscure misfeature described in sections
	 * 6.1, 6.2.6, and A.1.5 of the RFC822 standard.
	 */
	else if ((*from == ',' || HEADER_END(from))
		 && has_bare_name_part
		 && !has_host_part
		 && last_nws != ';')
	{
    ...
	    *from++ = '@';
	    memcpy(from, host, hostlen);
	    from = p + hostlen + 1;
	    has_host_part = TRUE;
	}

If there's useful data I can provide, let me know as fetchmail is
currently corrupting modern, valid, emails that are in the wild;  not
some exotic test case.

-- 
Cheers, Ralph.
https://plus.google.com/+RalphCorderoy