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Ask Slashdot: How To Unblock Email From My Comcast-Hosted Server?

man_ls Had the same issue. (405 comments)

I had the same issue and it did take quite a bit of digging to nail down. Comcast Business with 5 static IPs, same setup as yours.

1. Make sure your reverse DNS entries are correctly configured such that the domain of your reverse DNS lookup will match the domain your messages are claiming to be from. dashed-ip.sea.wa.comcast.net will generate spam warnings on many mail servers if your server claims to be mail.joecorp.com. Call Support and they will update it for you on the phone within a couple of minutes. Also make sure you're not in a residential IP block.

2. Make sure you're not actually an open relay or otherwise allowing unauthenticated senders to generate outbound messages. I was using MailEnable, and had it misconfigured such that it wasn't actually doing the authentication I had selected. This got me blacklisted quickly. A few bounce messages had links to the blacklists themselves to submit appeals; they'd dutifully take me off each time but I'd get re-added automatically. It took a few weeks of trial and error to get this one fixed. I know you say you're not...and I thought I wasn't either, having specifically taken steps to disable open relaying. But it turns out I didn't quite get it the first time, and was still relaying messages without authentication.

I'd imagine issue (1) may be a big contributor to your problems, personally.

about two weeks ago

Ask Slashdot: Minimizing Oil and Gas Dependency In a Central European City?

man_ls Server (250 comments)

What's the power consumption of the server? Depending on the load, you might be well-suited to pick up a small ARM-based system (or more than one) if the loads are somewhat light. Personal web server/file server/LDAP/etc. doesn't need a lot of horsepower and there's a good chance you might be burning extra electricity unnecessarily.

about three weeks ago

FTDI Reportedly Bricking Devices Using Competitors' Chips.

man_ls Re:It's risky and unlikely to succeed. (700 comments)

I think that'd be a pretty major undertaking; once the devices are "bricked" by setting their ID to 0, the OS can no longer communicate with that device. Seems like it'd be pretty tough to push a patch that way, unless they fix the USB stack to allow guest devices = 0.

about a month ago

Google Threatened With $100M Lawsuit Over Nude Celebrity Photos

man_ls Possible? (225 comments)

I remember reading somewhere that most pornography can't be copyrighted, because "obscene materials" aren't eligible for copyright protection. Is that still true?

about 2 months ago

Canadian Regulator Threatens To Impose New Netflix Regulation

man_ls Hahaha (324 comments)

Netflix should have laughed in their faces and told them that if they want to stop Canadians from subscribing, they'd need to get every ISP and VPN provider in the country to block access to it, then continued on happily taking credit card payments and sending traffic to Canada.

It's not Netflix fault that Canada doesn't produce any noteworthy cultural exports. Lots of other good stuff, sure, but TV and movies not so much.

about 2 months ago

Next Android To Enable Local Encryption By Default Too, Says Google

man_ls Passcode Options (126 comments)

Unless something has changed with a recent system update, last time I checked the local device encryption for Android disabled the Gesture and PIN input, leaving Password as the only option. I don't exactly care to enter a full-on alphanumeric password every time I take my phone out of stand-by, so the feature is of limited use.

I prefer to use TextSecure. This hooks into the SMS and MMS handlers and redirects them from the internal store, to an encrypted store with an application passphrase. Keeps my phone easy to open up, but keeps the only data I have an interest in protecting safe.

about 2 months ago

Apple Will No Longer Unlock Most iPhones, iPads For Police

man_ls Re:So everything is protected by a 4 digit passcod (504 comments)

More systems like this should really have a "duress PIN". Enter a specific number which is different from your unlock code to immediately wipe the device, no 10-retries required.

about 2 months ago

Microsoft's Windows 8 App Store Is Full of Scamware

man_ls Remember, Microsoft Approves (188 comments)

Lacking evidence to the contrary, it seems Microsoft actively approves this state of things. They have a human performing certification and content compliance, which involves actually installing and verifying these applications:

"Content compliance: Our certification testers install and review your app to test it for content compliance. The amount of time this takes varies depending on how complex your app is, how much visual content it has, and how many apps have been submitted recently."

With that statement, they must be 100% complicit in these scams, because it makes them money when someone bites, and because it keeps the number of apps in the app store up.

about 3 months ago

Microsoft Takes Down No-IP.com Domains

man_ls Re:Sue them for all they're worth (495 comments)

Since I'm replying to an AC post I don't feel a need to include citations, but there's been at least one case where the domains in question were purchased through registrars and registered to owners both outside the United States but because the domains themselves were .com domains and Verizon is the ultimate authority for .com domains, the U.S. simply ordered Verizon to update the global master registry to reflect the seizure and there was nothing to be done about it.

They'd have to use a non-U.S. TLD as well.

about 5 months ago

Even In Digital Photography Age, High Schoolers Still Flock To the Darkroom

man_ls Adding to the list... (240 comments)

Our limited education tax dollars have no business funding something so useless to modern society as darkroom photography.

about 5 months ago

Canadian Teen Arrested For Calling In 30+ Swattings, Bomb Threats

man_ls Excellent work! (350 comments)

This kid should rot in jail for a while, then receive a lifetime ban from emergency services.

about 6 months ago

.NET Native Compilation Preview Released

man_ls Re:So no more .net redistributable? (217 comments)

I wonder how big a statically linked OpenOffice executable would be on Debian.

about 8 months ago

.NET Native Compilation Preview Released

man_ls Awesome? RT? (217 comments)

Is this a prelude to allowing compiled desktop applications on Windows RT? Without the CLR overhead, perhaps the ARM would be competitive with an entry-level Intel laptop?

about 8 months ago

Ask Slashdot: Experiences With Free To Air Satellite TV?

man_ls Re:Big Ugly Dishes (219 comments)

I think there's a power density component, too. C-Band signals are broadcast at a lot lower power than the enormously powerful signals put out by the providers which use 18" dishes.

about 8 months ago

Minnesota Teen Wins Settlement After School Takes Facebook Password

man_ls Asks... (367 comments)

"Asks schwit1, "How is this not a violation of the CFAA?" It sounds like the school was violating Facebook's Terms of Service, too."

Because in our society, laws don't apply to law enforcement officers or other officials. It's one of the perks of those jobs.

about 7 months ago

Interview: Ask John McAfee What You Will

man_ls Unreliable Respondant? (172 comments)

Given McAfee's penchant for making up wildly outlandish responses to questions he's bored with or finds uninteresting, do we have any reason to believe we'll actually get responses which are anything other than works of fiction?

about 7 months ago

More On the Disposable Tech Worker

man_ls Half-right. (323 comments)

He's kind of half-right, and the part he's right about is why I left the IT industry entirely. I just couldn't keep up, the skills churn was just too much and I couldn't devote enough time to learning the constant parade of new buzzwords just to continue to be able to do my job, while also having to do my job.

I knew quite a few people who were in various IT careers a few years ago, but have universally washed out and are now technical managers or in entirely different industries. The few who did stick around managed to do so because IT was both their career and hobby, and so they had home labs that were always running the latest-and-greatest of anything. Windows 8 was the straw that broke the camel's back, and I quit. Now I'm a technical manager too.

The industry moves too quickly, and requires a level of continuous retraining that's unlike anything else in existence. I'm not at all surprised it's better - for many reasons - to hire a new temp or employee than it is to retrain someone.

about 8 months ago

Windows 8 Metro: The Good Kind of Market Segmentation?

man_ls Re:Multiple Desktops on a Single screen. (389 comments)

As far back as Vista, I've had success running bizarre GPU/Monitor configurations that you'd think would never work but were always perfect. I'm talking 3 GPUs driving 5 monitors, with a GeForce and a Quadro of the same generation in PCIe slots and a 4-gens-back-not-same-driver GeForce in a PCI slot. Or two GeForces and a Radeon. With monitors of all different resolutions going at once.

It's not perfect, sure, but in my opinion Windows multi-monitor support is the most forgiving and easiest to configure of all operating systems currently on the market.

about 9 months ago

Does Crime Leave a Genetic Trace?

man_ls Lamarck Vindicated? (160 comments)

Does this mean Lamarckian evolution is partially correct after all?

about 9 months ago

How To Create Your Own Cryptocurrency

man_ls Re:I don't get it (203 comments)

The interesting stuff starts to happen when enough people accept credits of computer time that you don't need to worry about converting it to fiat paper anymore.

about a year ago


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