Blog Archives

RPC over HTTP(S) for Exchange 2003 – single server

I’m pleased to announce that I’m now able to access my exchange mailbox from anywhere in the world using RPC over HTTP(s).  This was a lot easier to setup than I thought it would be, and following the steps provided by Daniel Petri helped a lot!  I also utilized the RPCFrontend tool that he mentions in the link.  This made things very easy and I got it working the first time I attempted the configuration. 

What this means is that I can now access my mailbox on my Exchange server, from anywhere with the only requirement being an internet connection.  I can just open Outlook, and go straight to my mailbox as if I were on my home network.  I highly recommend this for anyone with Exchange servers, it makes remote connectivity so much easier and can be fully secured with SSL and other security options. 

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Exchange 2003 | OWA | winmail.dat

I ran into an interesting issue today, something that is an old leftover from early mail systems.? I was trying to e-mail my hosting provider back on a support ticket I had opened with them, but when I replied I got a bounce message saying my mail was rejected with the following message:

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Your message did not reach some or all of the intended recipients.

Subject: RE: myticketnumber]: message subject hidden for privacy reasons
Sent: 2/8/2008?3:16 PM
The following recipient(s) could not be reached:?myhostingprovidersemailaddress?on?2/8/2008?3:14 PM
The recipient could not be processed because it would violate the security policy in force
< smtp1.myproviderdomainname.com #5.7.0 smtp; 554-5.7.0 Reject, id=26006-18 – BANNED: multipart/mixed 554 5.7.0 | application/ms-tnef,.tnef,winmail.dat>

——————————-

So I did some digging online, and tested some things out.? I found that even if sending from OWA I still had this issue, so I knew it was a server configuration option I needed to look for.? The provider I am dealing with was quick to blame me of course, but my server config has not changed in years.? So I think they changed something on their side recently with the way their helpdesk processes mail, and thats what caused this issue.?

To resolve it, I went into my ESM, under global settings, internet message formats properties and changed the options to never use Exchange Rich text.? After applying this change, the issue was resolved and mail flow has been restored.?

I personally don?t like making server config changes due to problems with sending mail to just one outside recipient, but I deal with my hosting provider a lot and its a hassle to have to reply from a different mail account.?

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Open Source Anti-Spam for Exchange

I have been a long time user of GFI software, relevant to this post is their Mail Essentials for Exchange package.  I find it to be a very powerful and easily setup anti-spam system for Exchange.  I have had very little trouble with it, and it is packed with useful features.  However, recently I had some configuration issues with my spam setup, with rollernet really, not even an issue with Mail Essentials, but it got me thinking about my spam filtration system. 

I am now on a quest to find an open source anti-spam solution for Exchange.  I’m open to Linux based solutions as a gateway of sorts, but would prefer something that resides on the Exchange server running under Windows.  Don’t get me wrong, I have a great respect for SpamAssassin and other gateway type spam fitlers, but it gives the end user a much better experience if the anti-spam software can interact with the user, especially if it integrates with Outlook. 

Surely there must be some kind of solution out there I could try.  At the very least I might install a few different packages under Linux and route incoming mail through them, and from there go to Exchange for evaluation.  I can use server virtualization to allow for an easy evaluation of various types of configurations.  ASSP I hear is very good and there was one other package that I found last night that sounds promising.  I think it could be beneficial to have an additional layer of spam protection at the gateway level before GFI gets the messages and does its thing.  My only concern is false positives.  Lots of services and companies on the internet today do NOT have the proper DNS/MX confiugration and even at a more basic level don’t have their network setup right.  All these network issues can have a major impact on e-mail deliverability.  Its always a risk then when dealing with spam filters that you may block legitimate messages.  I am always watching spam logs to ensure that I keep an eye on how the system is doing.  If web services and companies would do a little work to get their sytems in compliance with RFS’s for SMTP and DNS, and setup the proper network configuration and mail server options, it would be a much better world for mail delivery without false positives. 

SPAMHAUS services

I am impressed by the services offered by SPAMHAUS, their data feed service is extremely useful and effective and their spam stats are amazing.  If only we could find a way to just stop spammers alltogether.  Immagine the bandwidth that would be freed up on the internet, if all SPAM were eliminated.

The Mosquito – kids can hear it, most adults can't

Ok, I’m a little late, almost 2 years late, but I just heard about this and think its really cool.  I read this article and this one is also good, and got curious, so from there, I came across this link which will let you download a tone generator with which you can generate your own custom tones and test your hearing abilities.  I tested myself and can hear up to 18Khz (18000.00Hz), but nothing over that.  So I should be able to hear the teenager mosquito ringtone just fine, which is around 17Khz.  I could hear all the sample sounds out there on the internet, and with the tone generator I mentioned, I found the limits of my hearing abilities.  Just a warning here that listening to these tones is annoying, its not a pleasant sound, and leaves a bit of a ringing in your ears.  I would advise moderation here when playing around with it.

Verizon FIOS billing issues

I’ve been having a difficult time lately with Verizon and their billing of my FIOS account. Sure my account history is a bit complicated. Let me recount the things that have happened in the brief history of my account…

1. Ordered online with a promotion offer (ordered with a landline phone service and had billing through the phone bill).

2. Got billed wrong amount, turned out they never applied the online promotion to my account.

3. Got an account credit of $60 to cover the promotion discount for 6 months. Also got my Target gift card mysteriously after complaining that I had not yet received it after my 12 weeks or service.

4. Ported my landline phone service to a VOIP provider.

5. Switched my billing method to credit card after phone service was ported away from Verizon.

6. Got a letter from Verizon saying I was in default and my account was terminated and sent to a collection agency.

7. Called CS AGAIN and found that my account is ok afterall, they had some kind of mixup with the other CSR that processed the port. My account is in good standing and no balance is due.

So as you can see, its been fun! I love FIOS internet, its fast, reliable and perfect for my home network, but dealing with a big company like Verizon is such a pain.

When you call in to customer service, you get a rep after going through their aweful phone system, and then they find out I’m in Florida and have to transfer me. I finally get someone in Florida and they tell me they can’t help me because they are normal Verizon and have to send me to a FIOS rep. I finally get a FIOS rep and then they have problems finding my billing history and account information. Its all straightened out now though, so I can take a breath of fresh air and not have to worry about this account any longer… until next month that is when they screw up my bill again.

review – at&t TILT

I have had the TILT with at&t for about a week now. I have to say this is the best phone I have used to date. Here are some highlights of why I like this device..

1. Its sleek and visually cool looking, coloring is modern and glossy.

2. The weight of the phone is indicative of being well built, it feels sturdy and tough.

3. It has plenty of onboard memory; you can customize the device, install apps and have plenty of onboard memory left without the need of a storage card.

4. Onboard GPS radio is neat; this is my first phone with true onboard GPS. A perk is that both Google maps and windows live search work with the onboard GPS radio for free.

5. The speed of this device to a data network is amazing. Over HSDPA I can download at nearly 1mbps which is not bad, although this connection is theoretically capable of much faster sped, but it’s still way better than EDGE!

6. You can use this device as a wireless modem, so when you travel or go somewhere that doesn’t offer free internet access, you can connect over Bluetooth to a laptop and get on the internet for free using your phone’s data plan.

7. Windows mobile 6 pro seems much more stable and visually attractive.

8. Battery life is not bad, in one day I am only using less than 50% of the battery with normal to light usage.

9. You can be on the phone and receive e-mail and use the data connection at the same time. No longer does using the phone disable all other radios on the device. You can now get important e-mail while talking on the phone.

10. Mobility! I can browse the web, make a blog post, track my position with GPS, take pictures, connect to wifi, use bluetooth devices, conect to VPN, run Citrix applications and sooooo much more, all while on the go.

There is more I will post about this device later, but those are the main points…

FIOS Update

So now that I’ve had FIOS for several months, I thought I would post an update. Here are my observations so far…

1. I love the ActionTec wireless router that comes with the service. It is a very flexible and fully featured with a firewall, MAC address filtering, port forwarding, and more. I took a little while to adjust to the settings on the router, as you have to click save in more than once place for your settings to be saved and applied, which is a little different, but once you figure out the little neuances of the router, you are good to go! It will do anything and everything I need and more.

2. My only gripe so far, is something that happened when my IP address changed. I had the service for probably over 2 months before my IP changed for the first time. When it did change, my home network lost internet connectivity and my dynamic DNS client was unable to connect to the internet to update my IP. This caused several hours of outage for my home e-mail and internet connectivity. I have not yet had another IP change, so I’m hoping the first time was just a fluke. (NOTE: This won’t be an issue for most people, unless you run DNS for accessing services on your home network like I do).

3. The speeds are consistent and fast, every time I run the Verizon speed test, it comes out over 20MBps down, and nearly 5MBps up, with only slight variations. The bandwidth is exceptional, very fast, and reliable. I have had not real service outages at all and am very pleased with the quality of service I am receiving.

4. In order to optomize the speed your computer will see on the FIOS network, it may be necessary to run the FIOS connection optomizer. This basically changes some TCP/IP settings in the registry to optomize throughput on the FIOS system. These are the same type of settings people have been adjusting since the internet was created, I’ve done it with dialup before, and this is just the most modern way to optomize the connection. Its no big deal, but you will see lower than advertized speeds unless you run the optimizer.

5. The price of the service is comperable to service with other providers in the area, but the speeds are much faster without increasing the cost of the service.

I am overall very pleased with Verizon FIOS service. I highly recommend it to anyone currently using a cable provider. I’ve been a cable user for years, and took a long time to make the decision to switch. I am happy that I did, and will never go back to cable. I would also point out that Verizon offers a 30 day money back guarantee, so you can always give it a try and test it out to see what you think. You can cancel at the service if you don’t want to keep it. Plus then your home will be wired for the service should you decide to use it again in the future.

Copernic Desktop Search

I really love Copernic Desktop Search, and wanted to post a personal recommendation for this software. I’ve tried several other desktop search applications, including Windows Desktop Search, Yahoo desktop search, Google desktop, X1 and more. Out of all of these, I found that Copernic had the most attractive user interface that made for a better end user experience, ease of search and I like the way it displays the search results.

The best thing about this software, is not only that its fantastic in appearance, functionality and ease of use, but its also totally FREE for personal use. Its been around for a while, and I can’t wait to see what improvements are made to it over time, but I can’t immagine it getting much better than it already is.

I use this software for searching my personal Exchange mailbox, PST files, internet favorites, and local documents. You can also index files on a network drive. You can save your searches for handy future use. This is top notch software, that has a very attractive interface, great features comperable to the other big names in search and costs nothing! There are no pop-ups or annoying advertising, its just great free software. Click the link at the top of this post and download Copernic Desktop Search today and try it for yourself.

First Dynamic IP change a failure

This morning around 1am my IP address changed on my FIOS router at home. I have a dynamic dns client running to update a few DNS entries I use. Unfortunately, after the router got its new IP, it quit working. None of my home machines could access the internet. So the dynamic dns client running on a server, could not update my dynamic DNS. I rebooted the router this morning and was pleased to find that the client was able to update after the reboot. I am hoping this was a fluke and the next time the IP changes, I won’t have this issue.