[178057] in North American Network Operators' Group
Re: gmail spam help
daemon@ATHENA.MIT.EDU (DJ Anderson)
Fri Feb 13 16:46:46 2015
X-Original-To: nanog@nanog.org
Date: Thu, 12 Feb 2015 06:58:31 -0900 (AKST)
To: Scott Helms <khelms@zcorum.com>
In-Reply-To: <CAMrdfRwxaCJtDHdaO4S7nK=jy1H1SYq4=caa8VXDDUAJ8+eARA@mail.gmail.com>
From: DJ Anderson <dj@techwebhosting.com>
Cc: Alex Rubenstein <alex@corp.nac.net>, NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
A good tool to test all that is mxtoolbox.com. They have black list checks =
and SMTP tests that will check your PTR records and other things. They also=
provide free weekly blacklist checks for one domain.=20
DJ Anderson
Sent from my iPhone=20
> On Feb 12, 2015, at 10:53 AM, Scott Helms <khelms@zcorum.com> wrote:
>=20
> I'd be interested to know how you can be so adamant about the lack of spa=
m
> from this specific server. A great percentage of the spam hitting server=
s
> I have visibility into comes from very similar kinds of set ups because
> they tend to have little or no over sight in place.
>=20
> Also, lots of commercial email gets flagged as spam by users, even when
> they opted in for the email. If enough people flagged email from this
> server as spam it will cause Google to consider other email from the same
> small server as likely to be spam as well. Small systems, especially new
> ones, tend to unintentionally look like spam sources by not having proper
> reverse records, making sure you have SPF set up for the domain, etc.
>=20
>=20
> Scott Helms
> Vice President of Technology
> ZCorum
> (678) 507-5000
> --------------------------------
> http://twitter.com/kscotthelms
> --------------------------------
>=20
>> On Thu, Feb 12, 2015 at 10:41 AM, Alex Rubenstein <alex@corp.nac.net> wr=
ote:
>>=20
>> I should have been clearer.
>>=20
>> I have been getting complaints from my sales folks that when they send
>> emails to people who use gmail (either a gmail account or google apps) t=
hat
>> they recipient is reporting that the email is ending up in the Spam fold=
er.
>> So, I tested this myself, sending an email from alex@corp.nac.net<mailto=
:
>> alex@corp.nac.net> to rubenstein45@gmail.com<mailto:rubenstein45@gmail=
=2Ecom
>>=20
>> [cid:image001.png@01D046AD.3B2FA890]
>>=20
>> This is curious to me, since @corp.nac.net is a small exchange
>> implementation with only about 50 users behind it, and there is no quest=
ion
>> that there is no spamming going on from here.
>>=20
>> So, it=E2=80=99s not a question of adding a filter or not using gmail; i=
t is not
>> me who is using gmail in this problem.
>>=20
>>=20
>>=20
>> From: Josh Luthman [mailto:josh@imaginenetworksllc.com]
>> Sent: Thursday, February 12, 2015 9:32 AM
>> To: Alex Rubenstein
>> Cc: NANOG list
>> Subject: Re: gmail spam help
>>=20
>>=20
>> Create a filter.
>>=20
>> Josh Luthman
>> Office: 937-552-2340
>> Direct: 937-552-2343
>> 1100 Wayne St
>> Suite 1337
>> Troy, OH 45373
>> On Feb 12, 2015 8:11 AM, "Alex Rubenstein" <alex@corp.nac.net<mailto:
>> alex@corp.nac.net>> wrote:
>> Is there anyone on-list that can help me with a world -> gmail email
>> issue, where email is being considering spam by gmail erroneously?
>>=20
>> Thanks.
>>=20
>>=20
