I should have specified: latest snapshot as of writing.
On Jun 4, 2014 1:26 PM, "Jason A. Donenfeld" <ja...@zx2c4.com> wrote:
> Hi Gilles,
>
> I've encountered a strange bug. Recently, every time I send a message to
> more than one gmail user at a time, I get a bounce message, saying there
> was an error sending it, 550, for it being spam. The bounced message it
> sent back was blank, with only a single "received from" header in it.
> Further more, a few minutes later, the message would actually be
> successfully delivered to the recipient, in spite of the 550. Pretty
> strange. I decided to dig into the logs to see what's happening. Here's
> what it looks like to me:
>
> 1. ja...@zx2c4.com sends message to non-gmail, gmailA, gmailB, gmailC via
> his trusty smtpd.
> 2. smtpd receives it, and sends it to :10027 for dkim.
> 3. smtpd receives from :10028, and attempts to relay onward.
> 4. Successfully sends to non-gmail, full 2552 bytes.
> 5. Sends truncated 113 byte message, containing only a "received from"
> line to gmailA, gmailB, gmailC.
> 6. Gmail rejects 113 byte garbage message, and smtpd queues up a bounce
> message to send to me.
> 7. A few minutes later, miraculously, smtpd somehow gets a hold of the
> correct 2552 byte message, and sends it to gmailA, gmailB, gmailC .Gmail
> accepts 220.
>
> So what's going on? What is this strange truncated message error? All I
> can see in here right now is something cryptic about pipelining, but I'm
> not sure that's it. I've attached a full trace log of what's going on, and
> at the bottom of this message you should find various configuration files
> pasted.
>
> Thanks,
> Jason
>
>
>
> frisell ~ # cat /etc/opensmtpd/smtpd.conf
> pki frisell.zx2c4.com certificate "/etc/opensmtpd/certs/frisell.crt"
> pki frisell.zx2c4.com key "/etc/opensmtpd/certs/frisell.key"
> pki frisell.zx2c4.com dhparams "/etc/opensmtpd/certs/frisell.dh"
>
> table smtpauth file:/etc/opensmtpd/auth.txt
> table smtpdomains file:/etc/opensmtpd/domains.txt
> table smtpaddresses file:/etc/opensmtpd/addresses.txt
> table helonames { 127.0.0.1 = localhost, 192.95.5.64 = frisell.zx2c4.com }
>
> listen on eth0 tls pki frisell.zx2c4.com hostname frisell.zx2c4.com
> listen on eth0 port 587 tls-require pki frisell.zx2c4.com auth <smtpauth>
> tag submission hostname frisell.zx2c4.com mask-source
> listen on lo port 10028 tag dkim hostname frisell.zx2c4.com mask-source
>
> accept tagged submission for any relay via smtp://127.0.0.1:10027 source
> 127.0.0.1 hostnames <helonames>
> accept from any for domain <smtpdomains> virtual <smtpaddresses>
> forward-only
> accept tagged dkim for any relay source 192.95.5.64 hostnames <helonames>
> accept from local for any relay source 192.95.5.64 hostnames <helonames>
>
> frisell ~ # cat /etc/dkimproxy/dkimproxy_out.conf | grep -v domain
> listen 127.0.0.1:10027
> relay 127.0.0.1:10028
> signature dkim(c=relaxed)
> keyfile /etc/dkimproxy/out.key
> selector mail
> min_servers 5
>
>
>
