On Thu, Nov 18, 2010 at 06:55:14AM -0600, Noel Jones wrote:
> On 11/18/2010 3:12 AM, J. Roeleveld wrote:
> >Hi All,
> >
> >I've been having issues where emails are being rejected by Cyrus because the
> >"From" address contains an underscore in the domain name.
> >
> ...
> >
> >PS. I have contacted the domain admins where these are coming from, but I'm
> >not convinced the user is actually using their smtp-server for outbound
> >emails.
> 
> Seems like contacting a Cyrus list is a better idea.

Yeah, we're on it.  Seriously considering not being so strict
about the domain name.   There was stuff from Brad Fitzpatrick
when LiveJournal allowed them a few years ago - saying pretty
much everything allows underscores in web stuff.  Wondering if
it's worth fighting the "standards complient" fight.

http://bugzilla.cyrusimap.org/show_bug.cgi?id=3341

Bron ( and FastMail is now blocking _ in our postfix rules:
       +/@.*_/ REJECT Domains cannot contain underscore )

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