[ZendTo] Issues with sending to external users

Jules Jules at Zend.To
Fri Jan 13 13:45:28 GMT 2017


In your "From:" header, do you really have a space between @ and zendto?
From: Zendto <no-reply at zendto.XXXXX <mailto:no-reply at utoronto.ca>>
That would do it, for sure.
And you appear to have stray spaces in the To: header as well. Any/all 
of those would break it.

And have you set the value of "EmailSenderAddress" in 
/opt/zendto/config/zendto.conf?

Cheers,
Jules.

On 13/01/2017 13:31, Brian Novogradac wrote:
>
> Thanks for helping me out here here is some more information.
>
> -Running Centos 6.8
>
> -Yes the zendto is sending messages to sendmail on the machine
>
> -I have all hostname information set correctly in hosts file
>
> -In sendmail.mc I have added the domainname in 
> define(`confDOMAIN_NAME', `zendto.host.ca')dnl
>
> Maillog:
>
> Jan 13 08:19:19 zendto sendmail[5941]: v0DDJILc005941: from=apache, 
> size=1517, class=0, nrcpts=1, 
> msgid=<201701131319.v0DDJILc005941 at zendto.XXXXX>, relay=apache at localhost
>
> Jan 13 08:19:19 zendto sendmail[5942]: v0DDJJOE005942: from=<apache@ 
> zendto.XXXXX >, size=1744, class=0, nrcpts=1, 
> msgid=<201701131319.v0DDJILc005941@ zendto.XXXXX >, proto=ESMTP, 
> daemon=MTA, relay=localhost.localdomain [127.0.0.1]
>
> Jan 13 08:19:19 zendto sendmail[5941]: v0DDJILc005941: 
> to=userXXX at gmail.com, ctladdr=apache (48/48), delay=00:00:01, 
> xdelay=00:00:00, mailer=relay, pri=31517, relay=[127.0.0.1] 
> [127.0.0.1], dsn=2.0.0, stat=Sent (v0DDJJOE005942 Message accepted for 
> delivery)
>
> Jan 13 08:19:20 zendto sendmail[5944]: STARTTLS=client, 
> relay=gmail-smtp-in.l.google.com., version=TLSv1/SSLv3, verify=FAIL, 
> cipher=ECDHE-RSA-AES128-GCM-SHA256, bits=128/128
>
> Jan 13 08:19:20 zendto sendmail[5944]: v0DDJJOE005942: to=< 
> userXXX at gmail.com >, ctladdr=<apache@ zendto.XXXXX > (48/48), 
> delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=121744, 
> relay=gmail-smtp-in.l.google.com. [IPv6:2607:f8b0:4001:c01::1b], 
> dsn=5.0.0, stat=Service unavailable
>
> Jan 13 08:19:20 zendto sendmail[5944]: v0DDJJOE005942: v0DDJKOE005944: 
> DSN: Service unavailable
>
> Jan 13 08:19:20 zendto sendmail[5944]: v0DDJKOE005944: to=root, 
> delay=00:00:00, xdelay=00:00:00, mailer=local, pri=32992, dsn=2.0.0, 
> stat=Sent
>
> Email Header:
>
> Received: from zendto.XXXXX (localhost.localdomain [127.0.0.1]) by
> zendto.XXXXX t(8.14.4/8.14.4) with ESMTP id v0CJ8WAd001980; Thu, 12 Jan
> 2017 14:08:32 -0500
> Received: (from apache at localhost <mailto:apache at localhost>) by 
> zendto.XXXXX (8.14.4/8.14.4/Submit)
> id v0CJ8Wm9001976; Thu, 12 Jan 2017 14:08:32 -0500
> Date: Thu, 12 Jan 2017 14:08:32 -0500
> Message-ID: <201701121908.v0CJ8Wm9001976 at zendto.XXXXX 
> <mailto:201701121908.v0CJ8Wm9001976 at send.utoronto.ca>>
> To: < userXXX at gmail.com >
> Subject: User has dropped off a file for you
> X-PHP-Originating-Script: 0:NSSDropbox.php
> From: Zendto <no-reply at zendto.XXXXX <mailto:no-reply at utoronto.ca>>
>
> I have no issues sending to internal email addresses.  Just outbound
>
> No non-delivery report was sent or logged on google/yahoo, was not in 
> junk or spam.  It looks like it just dropped it.
>
> Brian
>
> *From:*zendto-bounces at zend.to [mailto:zendto-bounces at zend.to] *On 
> Behalf Of *Mike Brudenell
> *Sent:* Friday, January 13, 2017 4:56 AM
> *To:* ZendTo Users <zendto at zend.to>
> *Subject:* Re: [ZendTo] Issues with sending to external users
>
> Hi, Brian -
>
> You've not given us much to go on — always give as much 
> logging/debugging information as you can to help us help you!
>
> The "Received" header in your sample header seems to suggest that your 
> ZendTo installation is handing its message over to the Sendmail 
> software running on the computer running ZendTo itself. That's 
> entirely expected if you've got ZendTo configured to send its messages 
> to "localhost".
>
> But whether it's _right_ for your setup depends very much on your 
> email service setup. The next step for you is to look in the Sendmail 
> logs on your machine and see:
>
>   * Has Sendmail attempted to transmit the message onward? (If not,
>     then there might be a problem with Sendmail's configuration.)
>   * If it has, did it transmit successfully? If it did, what machine
>     did it go to? If it's one of your organisation's you'll then need
>     to check its mail queues and logs. If it didn't transmit OK then
>     the logs will hopefully give you an idea of why not.
>
> If the outgoing message did actually reach Google/Yahoo's mail servers 
> was the message rejected and returned with a Non-Delivery Report? If 
> so, it will likely contain information as to why the message was 
> rejected. If not, was the message accepted but put into a Spam/Junk 
> folder?
>
> If your ZendTo server is trying to send the messages direct to 
> Google/Yahoo rather than via your corporate smarthost _and_ your 
> organisation is using SPF/DKIM/DMARC then they could be being rejected 
> because of that: the messages are arriving from a machine not listed 
> as being authorised to send out messages from the addresses you're 
> using. (It's not really possible for us to check on this as you didn't 
> include the address you're using in the From header, and obfuscate the 
> server name in the Received header. You'll therefore have to check 
> this possibility out for yourself.)
>
> Cheers,
>
> Mike B-)
>
> On 12 January 2017 at 19:21, Brian Novogradac 
> <Brian.Novogradac at utoronto.ca <mailto:Brian.Novogradac at utoronto.ca>> 
> wrote:
>
>     Hello all I am having an issue sending to external users. They do
>     not get the email.  I think I found the issue but I don’t know
>     where to change these settings.  I grabbed the email header and it
>     is showing this:
>
>     Received: from zendto.xxxxx.ca <http://zendto.xxxxx.ca>
>     (localhost.localdomain [127.0.0.1]) by
>     zendto.xxxxx.ca <http://zendto.xxxxx.ca> (8.14.4/8.14.4) with
>     ESMTP id v0CJF2NS002063; Thu, 12 Jan
>     2017 14:15:02 -0500
>     Received: (from apache at localhost <mailto:apache at localhost>) by
>     zendto.xxxxx.ca <http://zendto.xxxxx.ca> (8.14.4/8.14.4/Submit)
>     id v0CJF1NN002062; Thu, 12 Jan 2017 14:15:01 -0500
>     Date: Thu, 12 Jan 2017 14:15:01 -0500
>     Message-ID: <201701121915.v0CJF1NN002062 at send.utoronto.ca
>     <mailto:201701121915.v0CJF1NN002062 at send.utoronto.ca>>
>     To: < zendto.xxxxx.ca <http://zendto.xxxxx.ca> >
>
>     Any help woul be appreciated.
>
>     There is an smtp setting in php.ini
>
>     [mail function]
>
>     ; For Win32 only.
>
>     ; http://www.php.net/manual/en/mail.configuration.php#ini.smtp
>
>     SMTP = zendto.xxxxx.ca <http://zendto.xxxxx.ca>
>
>     ; http://www.php.net/manual/en/mail.configuration.php#ini.smtp-port
>
>     smtp_port = 25
>
>     do I use my hostname instead of localhost here.
>
>     Is there anwhere else???
>
>     Brian Novogradac
>     Intermediate Systems Administrator(I&ITS)
>
>     *Information Security Is Everyone’s Responsibility.*Learn more:
>     http://uoft.me/cyberaware
>
>
>     University of Toronto at Mississauga
>     3359 Mississauga Road N.
>     Mississauga, Ontario, L5L 1C6
>
>     (P) 416-435-2543
>     (F) 905-569-4343
>     (E) brian.novogradac at utoronto.ca <mailto:brian.novogradac at utoronto.ca>
>
>     (W) www.utm.utoronto.ca/iits <http://www.utm.utoronto.ca/iits>
>
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>
>     _______________________________________________
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>
>
>
> -- 
>
> Systems Administrator & Change Manager
>
> IT Services, University of York, Heslington, York YO10 5DD, UK
>
> Tel: +44-(0)1904-323811
>
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Jules

-- 
Julian Field MEng MBCS CITP CEng


www.Zend.To
Twitter: @JulesFM
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