On Thu, Oct 01, 2009 at 01:35:38PM -0400, Roode, Eric wrote: > Hello all, > > We are having a problem where e-mail is not being delivered to > addresses outside our > domain. I have narrowed down the problem to the e-mail headers that RT > generates. But I am > clueless as to why this is a problem. > > We are an all-Windows shop, except for one ubuntu 8.10 server that > runs RT 3.8 under > Apache 2. For mail, it uses Postfix, and routes all mail to our local > Exchange server > (Exchange 2003 under Windows Server 2000). For e-mail that RT sends to > recipients inside our > domain, it all works well. But we have some contractors who need to > receive e-mail from RT on > certain events, and these contractors have addresses outside our network. > But the mail is > never delivered. > > After much experimentation, I narrowed the problem down to the > "Content-Transfer-Encoding: > 8bit" header. If that header is present, e-mail does not get delivered > outside our network > (e.g. to gmail.com, yahoo.com, anywhere); if that header is absent, e-mail > goes through fine. > > syslog tells me nothing useful: No matter what, it reports "mail > queued for delivery", > which I presume is coming from the Exchange server.
What do your exchange mail logs say? > Now, I know this is not an RT problem, because I reproduced the > problem consistently at > the ubuntu command line by manually invoking sendmail. But a) I wonder if > that header is > required by RT, or if an alternative (base64?) could be used instead; and > b) Maybe I'll get > lucky and someone on the list will know a solution anyhow.
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