[anti-abuse-wg] Mimecast.com
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James Hoddinott
jhoddinott at cloudmark.com
Wed Nov 4 11:20:51 CET 2015
Hi Andre, I don't think they are Evil Corp and this is little more than spam filtering on a role address (which you can debate ad-infinitum if you like). I did spot that your replies on this thread were flagged as spam by us and since we provide them some services I dug in a little more and can see that our systems had erroneously set the domain hostacc.com [1] as spammy so I have fixed that up for you and I reckon you should now be able to send your reports in to Mimecast without issue (or at least, without this issue). [1] This appears to be what your sending IP resolves to and what it HELOs as. -- James Hoddinott Manager, Security Operations Cloudmark > -----Original Message----- > From: anti-abuse-wg [mailto:anti-abuse-wg-bounces at ripe.net] On Behalf Of > andre at ox.co.za > Sent: 04 November 2015 09:19 > To: Suresh Ramasubramanian > Cc: anti-abuse-wg at ripe.net > Subject: [SPAM] Re: [anti-abuse-wg] Mimecast.com > > On Wed, 4 Nov 2015 14:27:42 +0530 > Suresh Ramasubramanian <ops.lists at gmail.com> wrote: > > First - I have a great amount of respect for Nat - he was a colleague > > at IBM (where he used to be for years) before he left to join > > Mimecast. > > > Okay, but maybe he is no longer there, etc. Even though one person is > great, good, ethical, etc. it does not mean that the legacy, new > management, etc is/are following that/those person/s > > If Mimecast is now Evil Corp, people need to know and also > people need to become more aware of the powers that offer > "services" which is actually similar to what the mob offers a bakery in > Chicago... > > > That said - I am going to ask him to have someone investigate any > > email you have sent mime cast, and why it bounced - or whether there > > is an unfiltered alias you can resend your email to. > > > > Thank you so much! > > I will update this list with whatever happens, > > This being an abuse group, the various perspectives of the wide > possibilities of abuse, as business models in one area, such as > email, can knock on to others, like ipv4/6 etc. > > andre > > > > On 04-Nov-2015, at 1:59 PM, andre at ox.co.za wrote: > > > > > > On Wed, 4 Nov 2015 13:48:51 +0530 > > > Suresh Ramasubramanian <ops.lists at gmail.com> wrote: > > >> Mimecast’s chief scientist is Nathaniel Borenstein - who originally > > >> wrote the MIME spec. > > >> They are legit. I am not sure what is going on here. > > >> > > > thank you for the reference Mr Ramasubramanian, would you do me the > > > kind favor of asking them: > > > why they are blocking @188.40.114.80 - which is also the ip used to > > > send emails to this list. - and then maybe tell us, in public what > > > is going on? > > > > > > If they are not extorting money, then I surely must have abused > > > them or their users? Or their system is broken, or what? > > > > > > but i think that they may not bee that legit? or they have changed > > > their corporate goals? or there are new management, or something? > > > > > > Just from what you can see here: > > > https://community.mimecast.com/docs/DOC-1369#554 > > > > > > then they are bouncing with 554 to support@ > > > > > > that is clearly not legit. > > > > > > or it is a serious flaw/broken system? > > > > > > they could bounce of course any way they like, but bouncing > > > with something that is going to return is basically saying only one > > > thing - there is no way to communicate with them, as when I > > > do that is simply added to their block... > > > > > > that is not cool, nice, decent or even fair bahavior? > > > > > > andre > > > > > >>> On 04-Nov-2015, at 1:14 PM, andre at ox.co.za wrote: > > >>> > > >>> Hello, > > >>> > > >>> Has anyone of you had much/any dealings with this crowd: > > >>> Mimecast.com ? > > >>> > > >>> Less than 1% of our email volume exchanges with them, and > > >>> yesterday after complaining about abuse/UBE from them and > > >>> receiving no response, escalated to @telstra and then all of a > > >>> sudden they are returning all email in a loop: > > >>> > > >>> support at mimecast.com > > >>> host service-alpha-inbound-b.mimecast.com [91.220.42.231] > > >>> SMTP error from remote mail server after end of data: > > >>> 554 Email rejected due to security policies - > > >>> https://community.mimecast.com/docs/DOC-1369#554 > > >>> > > >>> Then, when I email them from a different server, it goes through > > >>> the first time and viola, the second email, same block, on the > > >>> "new" server" > > >>> > > >>> From their website: They provide email filtering services, this > > >>> feels like they are extorting money from me, which I will not pay > > >>> of course. > > >>> > > >>> But, have any of you had any similar experiences? As they are > > >>> providing this type of "service" to some of our @gov departments > > >>> as well as other large companies, I will have user blowback - what > > >>> do I tell my users? We are blocked because we dared complaining? > > >>> or we are blocked because we do not pay? > > >>> > > >>> any advice will be appreciated, obviously this type of behavior > > >>> breaks email and the larger the "protectors" become, the more > > >>> control they have... > > >>> > > >>> tia > > >>> > > >>> andre > > >>> > > >>> > > >> > > > > > > > > >
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