[ZendTo] Issues with sending to external users

[Mike Brudenell]

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>
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 (localhost.localdomain [127.0.0.1]) by
> 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) by 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>
> To: < 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://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
>
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>
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-- 
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