[ww-devel] setting up postfix on test1.webwork.maa.org

Mon Feb 3 13:57:35 EST 2020

Mike,

Im not sure if you are testing. I got an email from webwork.maa.org.

[image: MAA logo.PNG]

*Simon Park*

*IT Project Coordinator/System Administrator*

Mathematical Association of America

1529 18th Street NW

Washington DC 20036

Direct: 202.319.8492

www.maa.org

On Mon, Feb 3, 2020 at 1:52 PM Simon Park <spark at maa.org> wrote:

> Mike,
>
> I was testing postfix relay smtp on the server but no luck. I dont want to
> edit too many things that you were working on it so I stop. I guess Im
> going to test out on another server.
>
> By the way, I add smtp ports(25 and 587) on the security group network in
> aws. It doesnt seem like you are configuring for smtp relay on postfix so
> Im not sure. Please try again since I add smtp ports on network.
>
>
> [image: MAA logo.PNG]
>
>
>
> *Simon Park*
>
> *IT Project Coordinator/System Administrator*
>
>
>
> Mathematical Association of America
>
> 1529 18th Street NW
>
> Washington DC 20036
>
> Direct: 202.319.8492
>
> www.maa.org
>
>
>
>
>
>
>
>
>
> On Mon, Feb 3, 2020 at 10:51 AM Nathan Wallach <taniwallach at gmail.com>
> wrote:
>
>> Usually /etc/postfix/main.cf with a "relayhost" line. Something like:
>>
>> relayhost = [mailserver.domain.com]
>>
>>
>>    - http://www.postfix.org/BASIC_CONFIGURATION_README.html#relayhost
>>
>>
>> It is often informative to have a look at the data logged
>> in /var/log/maillog when debugging outgoing mail issues. Here are sample
>> log lines from a mail from tani at mathnet.technion.ac.il to
>> taniwallach at gmail.com. We have relayhost=[mrelay.technion.ac.il] set
>> nowadays.
>>
>> Feb  3 14:31:45 mathnet postfix/pickup[112819]: 76EAE205BA: uid=301 from=<
>>> tani at mathnet.technion.ac.il>
>>> Feb  3 14:31:45 mathnet postfix/cleanup[113064]: 76EAE205BA: message-id=<
>>> DB7PR01MB42829D0D1E0A4CED2B1DA570C2000 at DB7PR01MB4282.eurprd01.prod.exchangelabs.com
>>> >
>>> Feb  3 14:31:45 mathnet postfix/cleanup[113064]: 76EAE205BA:
>>> resent-message-id=<
>>> alpine.LRH.2.21.2002031431420.112911 at mathnet.technion.ac.il>
>>> Feb  3 14:31:45 mathnet postfix/qmgr[62347]: 76EAE205BA: from=<
>>> tani at mathnet.technion.ac.il>, size=35121, nrcpt=1 (queue active)
>>> Feb  3 14:31:45 mathnet postfix/smtp[113232]: 76EAE205BA: to=<
>>> taniwallach at gmail.com>, relay=mrelay.technion.ac.il[132.68.225.14]:25,
>>> delay=0.24, delays=0.01/0/0.23/0.01, dsn=2.0.0, status=sent (250 ok:
>>>  Message 174854163 accepted)
>>> Feb  3 14:31:45 mathnet postfix/qmgr[62347]: 76EAE205BA: removed
>>
>> <http://www.postfix.org/BASIC_CONFIGURATION_README.html#relayhost>
>> Here are records from longer ago (2016), when no relayhost setting was
>> used (from a saved log file from some debugging effort) so mails were sent
>> directly to the destination mail-servers based on DNS MX records:
>>
>> Jun 13 20:30:41 mathnet sendmail[28335]: u5DHUfDu028335: from=<
>>> tani at mathnet.technion.ac.il>, size=4535, class=0, nrcpts=2, msgid=<
>>> alpine.LRH.2.00.1606132028360.28068 at mathnet.technion.ac.il>,
>>> bodytype=8BITMIME, proto=ESMTP, daemon=MTA, relay=localhost.localdomain
>>> [127.0.0.1]
>>> Jun 13 20:30:41 mathnet sendmail[28334]: u5DHUfHP028332: to=<
>>> user1 at techunix.technion.ac.il>,<user2 at gmail.com>, ctladdr=<
>>> tani at mathnet.technion.ac.il> (301/301), delay=00:00:00,
>>> xdelay=00:00:00, mailer=relay, pri=154380, relay=[127.0.0.1] [127.0.0.1],
>>> dsn=2.0.0, stat=Sent (u5DHUfDu028335 Message accepted for delivery)
>>> Jun 13 20:30:42 mathnet sendmail[28339]: u5DHUfDu028335: to=<
>>> user2 at gmail.com>, ctladdr=<tani at mathnet.technion.ac.il> (301/301),
>>> delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=154535, relay=
>>> gmail-smtp-in.l.google.com. [74.125.133.26], dsn=2.0.0, stat=Sent (ok:
>>>  Message 68070280 accepted)
>>> Jun 13 20:30:42 mathnet sendmail[28339]: u5DHUfDu028335: to=<
>>> user1 at techunix.technion.ac.il>, ctladdr=<tani at mathnet.technion.ac.il>
>>> (301/301), delay=00:00:01, xdelay=00:00:00, mailer=esmtp, pri=154535, relay=
>>> techunix.technion.ac.il. [132.68.1.192], dsn=2.0.0, stat=Sent (Ok:
>>> queued as 34E7A2A0085)
>>>
>>
>> Back in 2017 before we set up the SPF record for mathnet, the logs had
>> very many entries like:
>>
>> Mar 15 20:48:49 mathnet postfix/smtp[77351]: 7DBB820395: host
>> gmail-smtp-in.l.google.com[173.194.76.26] refused to talk to me: 421
>> #4.4.5 Too many connections from your host.
>>
>> which all started to happen after changes made to the Technion's main SPF
>> record.
>> <https://support.google.com/a/answer/33786?hl=en>
>> More on SPF: https://support.google.com/a/answer/33786?hl=en
>>
>> Another issue which can cause trouble is the lack of reverse DNS records:
>> http://stackoverflow.com/questions/35430457/sendmail-452-4-5-3-too-many-recipients
>>
>> On Mon, Feb 3, 2020 at 5:18 PM mgage <gage at math.rochester.edu> wrote:
>>
>>> I’ve decided to use postfix since reports are that it is easier to
>>> configure.
>>>
>>> I have it working in the sense that bugzilla, for example, claims that
>>> mail is sent off.  Also
>>>
>>> mail  gage at math.rochester.edu  or mail michaelegage at gmail.com
>>>
>>> doesn’t give any errors.  It also doesn’t deliver the mail — I never
>>> receive messages at either of those locations.
>>>
>>> Most likely there is some kind of spam filter (I have checked the spam
>>> filters on each of those sites) that is blocking mail.
>>>
>>> Where do you configure postfix to use gmail as mail relay?  That might
>>> be the problem or it might be something among the issues that Tani brings
>>> up.
>>>
>>> Take care,
>>>
>>> Mike
>>>
>>> On Feb 3, 2020, at 10:13 AM, Simon Park <spark at maa.org> wrote:
>>>
>>> Mike,
>>>
>>> I played around with postfix a long time ago. I believe you need to
>>> configure postfix/sendmail to use Gmail as a mail relay. So which email
>>> server are you going to use? postfix or sendmail?
>>>
>>> [image: MAA logo.PNG]
>>>
>>>
>>> *Simon Park*
>>> *IT Project Coordinator/System Administrator*
>>>
>>>
>>> Mathematical Association of America
>>> 1529 18th Street NW
>>> Washington DC 20036
>>> Direct: 202.319.8492
>>> www.maa.org
>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.maa.org&d=DwMFaQ&c=kbmfwr1Yojg42sGEpaQh5ofMHBeTl9EI2eaqQZhHbOU&r=C6Pt5AGtImanmAdcooarL-JZO8M5dSFPfs3VweYXYkE&m=OdSIWfnfO3gsmqfjCl1kfDoX9ht1LueGWAlRHe-aUbY&s=gSZywVW22QsbnvrLJfAJgTKMC9xWNT_RZF-5elYOW38&e=>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Sat, Feb 1, 2020 at 10:31 PM mgage <gage at math.rochester.edu> wrote:
>>>
>>>> Hi Simon,
>>>>
>>>> Are you familiar with setting up postfix (or exim) on ubuntu?  It’s a
>>>> mail transport app like sendmail.
>>>>
>>>> I have step by step instructions but I suspect it will go faster if
>>>> someone familiar with the process does it (or watches me while I do it :-)
>>>> ) .
>>>>
>>>> The sendmail/postfix process on test1.webwork.maa.org
>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__test1.webwork.maa.org&d=DwMFaQ&c=kbmfwr1Yojg42sGEpaQh5ofMHBeTl9EI2eaqQZhHbOU&r=C6Pt5AGtImanmAdcooarL-JZO8M5dSFPfs3VweYXYkE&m=OdSIWfnfO3gsmqfjCl1kfDoX9ht1LueGWAlRHe-aUbY&s=ODSrqJ4eylaNz5bdxalKeuKJc4FKEoZePke2xoMEamA&e=> is
>>>> not working properly and it is holding up installation particularly of
>>>> bugzilla
>>>> (and perhaps the other apps, mediawiki and moodle as well)
>>>>
>>>> If you haven’t installed postfix or sendmail on one of the other ubuntu
>>>> installations at MAA then don’t worry about it. I’ll
>>>> plow through the instructions.
>>>>
>>>> Thanks.
>>>>
>>>> Take care,
>>>>
>>>> Mike
>>>>
>>>>
>>> _______________________________________________
>>> webwork-devel mailing list
>>> webwork-devel at webwork.maa.org
>>> http://webwork.maa.org/mailman/listinfo/webwork-devel
>>>
>>
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