On Tue, 9 Dec 2014, Alessandro Vesely wrote:
>> Certain versions of sendmail consume the leading space in a way transparent
>> to milter, so it's there in the transported version but absent in what's
>> passed to the filter. opendkim attempts to determine if the MTA it's talking
>> to has the capability not to do that, but not all versions do. The MTA flag
>> of interest is SMFIP_HDR_LEADSPC.
>
> I don't think it's that, as it at most inserts one space.
The actual problem is the loss of a space, but you're saying below that
lots of recent versions were tried so I'll skip that bit.
> Would you try the following for me, please?
> From: "Display phrase of 49, so total line length is 76" <msk_at_blackops.org>
Done, and:
Authentication System: DomainKeys Identified Mail (DKIM)
Result: DKIM signature confirmed GOOD
Description: Signature verified, message arrived intact
Reporting host: services.sendmail.com
More information:
http://dkim.org/
Sendmail milter:
http://opendkim.org/
> I'd be baffled if testing with a long From: field succeeds to. But I
> have no idea why a length of 76 would break anything.
Something is improperly wrapping long header fields, perhaps?
-MSK
Received on Tue Dec 09 2014 - 21:10:32 PST