Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2012-06-27 Thread Travis Webb
Cayden,

Thanks for the update. I am also eagerly awaiting this feature. Thank you 
guys for your hard work.

-tjw

On Sunday, April 22, 2012 7:01:22 PM UTC-4, Cayden Meyer wrote:

 Hi Everyone, 

 SSL for Custom Domains is still undergoing testing and improvement. 

 I do not have a timeline to announce at this point, but rest assured that 
 this is a priority for the App Engine team and it is a feature we are 
 committed to launching. 

 Thanks,

 Cayden Meyer
 Product Manager, Google App Engine

 On 20 April 2012 23:54, James Gilliam jimgill...@gmail.com wrote:

 How about some status?

 On Mar 28, 3:34 pm, Kaan Soral kaanso...@gmail.com wrote:
  What is the current status of SSL for Custom Domains, when can we 
 expect it
  in production?
 
 
 
 
 
 
 
  On Monday, October 17, 2011 11:13:14 AM UTC+3, Cayden Meyer wrote:
 
   Hey everyone,
 
   I am pleased to announce that we are accepting signups for the SSL for
   custom domains Trusted Tester Program. This will allow you to serve
   secure traffic for your App Engine application from your own
   domain(https://your.domain.com) rather than your appspot.com domain
   (https://your-app-id.appspot.com).
 
   We will be offering two types of SSL service, Server Name Indication
   (SNI) and Virtual IP(VIP). SNI will be significantly less expensive
   than VIP when this service is fully launched, however unlike VIP it
   does not work everywhere SSL is supported, notably it is not supported
   by IE and Safari on Windows XP. Multiple certificates are supported by
   SNI, while the VIP service only supports a single certificate per
   virtual IP address. Wildcard certificates and certificates with
   alternate names are supported by both SNI and VIP.
 
   Either a Free or Paid Google Apps account is required to use SSL. The
   use of multiple domains is supported via the aliasing feature in
   Google Apps.
 
   If you are interesting in signing up to test this feature, please fill
   in the form linked below.
 
  https://docs.google.com/a/google.com/spreadsheet/viewform?formkey=dHF.
 ..
 
   Currently we are testing on a limited basis and will not be able to
   accept everybody who applies to the trusted tester program.
 
   As with all trusted tester programs, documentation is a work in
   progress.
 
   This feature is still in testing and as such we would advise against
   using this on production applications.
 
   If you have any queries, please email google-appengine-ssl-
   feedb...@google.com.
 
   Cheers,
 
   Cayden Meyer
   Product Manager, Google App Engine
   Blogger:http://googleappengine.blogspot.com
   Reddit:http://www.reddit.com/r/appengine
   Twitter:http://twitter.com/app_engine

 --
 You received this message because you are subscribed to the Google Groups 
 Google App Engine group.
 To post to this group, send email to google-appengine@googlegroups.com.
 To unsubscribe from this group, send email to 
 google-appengine+unsubscr...@googlegroups.com.
 For more options, visit this group at 
 http://groups.google.com/group/google-appengine?hl=en.




-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To view this discussion on the web visit 
https://groups.google.com/d/msg/google-appengine/-/_a7-eXtPF6IJ.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2012-04-26 Thread Doug Anderson
Thanks for the update Cayden.  It's reassuring to know SSL on custom 
domains is still alive and high priority with the GAE team.

I can certainly appreciate the desire and temptation to offer a nice, clean 
SNI solution.  However, I think today's client compatibility reality 
doesn't allow for an SNI solution.  The main culprits are pre-ICS Android 
and Blackberry clients more so than IE on Win-XP.  At least on Win-XP 
Chrome and FireFox are viable alternatives to IE.  Whereas Android 
incompatibility includes the Kindle Fire and the overwhelming majority of 
Android phones on the market today.  It just doesn't make sense for a 
modern website to deliberately disregard the certificate warnings its users 
will experience with those clients.  The warnings leave an unprofessional 
blemish on the site and likely leave the user confused and questioning the 
site's integrity and professionalism.

My hope is that Google will stick with the SNI path for possible future 
deployment but realize that VIP is the only practical approach at this 
point in time.  This means VIP would need to be offered at an affordable 
price point or perhaps even made available for free.  I can only imagine 
the cost and challenges involved with developing a robust VIP solution in 
the cloud environment.  However, every once in a while a feature is 
significant enough to overlook the NRE and do the right thing in lieu of 
trying to directly recoup costs.  I would argue that SSL on custom domains 
is such a feature.  A proper, affordable SSL solution promotes a secure web 
and benefits the GAE platform.

I wish SNI had been a part of the original TLS spec but unfortunately that 
didn't happen and now we are forced to wait several more years for 
significantly more incompatible clients to flush out of the ecosystem.  The 
alternative is to support SNI and pollute the web with certificate warnings 
when Android and Blackberry clients visit certain GAE sites.  I don't think 
anybody wants this and I hope Google does the right thing.

  - Doug Anderson

On Sunday, April 22, 2012 7:01:22 PM UTC-4, Cayden Meyer wrote:

 Hi Everyone, 

 SSL for Custom Domains is still undergoing testing and improvement. 

 I do not have a timeline to announce at this point, but rest assured that 
 this is a priority for the App Engine team and it is a feature we are 
 committed to launching. 

 Thanks,

 Cayden Meyer
 Product Manager, Google App Engine

 On 20 April 2012 23:54, James Gilliam jimgill...@gmail.com wrote:

 How about some status?

 On Mar 28, 3:34 pm, Kaan Soral kaanso...@gmail.com wrote:
  What is the current status of SSL for Custom Domains, when can we 
 expect it
  in production?
 
 
 
 
 
 
 
  On Monday, October 17, 2011 11:13:14 AM UTC+3, Cayden Meyer wrote:
 
   Hey everyone,
 
   I am pleased to announce that we are accepting signups for the SSL for
   custom domains Trusted Tester Program. This will allow you to serve
   secure traffic for your App Engine application from your own
   domain(https://your.domain.com) rather than your appspot.com domain
   (https://your-app-id.appspot.com).
 
   We will be offering two types of SSL service, Server Name Indication
   (SNI) and Virtual IP(VIP). SNI will be significantly less expensive
   than VIP when this service is fully launched, however unlike VIP it
   does not work everywhere SSL is supported, notably it is not supported
   by IE and Safari on Windows XP. Multiple certificates are supported by
   SNI, while the VIP service only supports a single certificate per
   virtual IP address. Wildcard certificates and certificates with
   alternate names are supported by both SNI and VIP.
 
   Either a Free or Paid Google Apps account is required to use SSL. The
   use of multiple domains is supported via the aliasing feature in
   Google Apps.
 
   If you are interesting in signing up to test this feature, please fill
   in the form linked below.
 
  https://docs.google.com/a/google.com/spreadsheet/viewform?formkey=dHF.
 ..
 
   Currently we are testing on a limited basis and will not be able to
   accept everybody who applies to the trusted tester program.
 
   As with all trusted tester programs, documentation is a work in
   progress.
 
   This feature is still in testing and as such we would advise against
   using this on production applications.
 
   If you have any queries, please email google-appengine-ssl-
   feedb...@google.com.
 
   Cheers,
 
   Cayden Meyer
   Product Manager, Google App Engine
   Blogger:http://googleappengine.blogspot.com
   Reddit:http://www.reddit.com/r/appengine
   Twitter:http://twitter.com/app_engine

 --
 You received this message because you are subscribed to the Google Groups 
 Google App Engine group.
 To post to this group, send email to google-appengine@googlegroups.com.
 To unsubscribe from this group, send email to 
 google-appengine+unsubscr...@googlegroups.com.
 For more options, visit this group at 
 

Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2012-04-26 Thread Doug Anderson


 Thanks for the update Cayden... it's nice to know this issue is still 
 alive and high priority!

 

 For me the biggest issue with SNI is pre-ICS Android and Blackberry more 
 than IE (or Safari) with Windows-XP.  I can appreciate the desire and 
 temptation for an SNI solution but the reality is that there are still too 
 many non-compliant clients out there for SNI to be an adequate solution for 
 99% of sites.  I wish SNI had been part of the original TLS spec but 
 unfortunately that isn't the case and we still have several years before 
 enough non-compliant clients are flushed from the ecosystem to make SNI a 
 viable solution.  Practically every Android phone (non Ice Cream Sandwich) 
 and many Android tablets including the Kindle Fire issue certificate 
 warnings with SNI today.  So if you care about Android / Kindle Fire / 
 Blackberry / IE-XP clients then SNI isn't for you.  The fact is if you use 
 SNI today your site will have an unprofessional blemish with the numerous 
 non-compliant clients and will result in a sub-standard user experience and 
 possibly support calls.

 

 So my hope is that Google keeps the SNI effort alive for future use but 
 makes VIP the recommended, affordable, and perhaps only solution for 
 today's GAE apps.  Since any non-trivial site should be using SSL today to 
 protect session data etc., I hope Google does the right thing to support 
 proper secure computing on its flagship platform.  I can only imagine the 
 cost and challenges involved with getting the VIP solution to work in the 
 cloud environment but every once in a while a feature comes along that you 
 just need to support because its the right thing to do and not to recoup 
 associate costs and make a big profit.  I would argue that (VIP) SSL is one 
 of those features.  It's something the GAE team can do simply because 
 they're Google and a leading steward of the Internet.  The alternate is to 
 pollute the web with certificate warnings, the majority of which will 
 likely be on its own Android platform.

 

 While we await this vital missing piece of an otherwise awesome GAE 
 platform you can test your client browsers responses to SNI here: 
  https://sni.velox.ch/

 

-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To view this discussion on the web visit 
https://groups.google.com/d/msg/google-appengine/-/7m0-QAOuQdUJ.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2012-04-26 Thread Doug Anderson
Thanks for the update Cayden.  It's reassuring to know SSL on custom 
domains is still alive and high priority with the GAE team.

I can certainly appreciate the desire and temptation to offer a nice, clean 
SNI solution.  However, I think today's client compatibility reality 
doesn't allow for an SNI solution.  The main culprits are pre-ICS Android 
and Blackberry clients more so than IE on Win-XP.  At least on Win-XP 
Chrome and FireFox are viable alternatives to IE.  Whereas Android 
incompatibility includes the Kindle Fire and the overwhelming majority of 
Android phones on the market today.  It just doesn't make sense for a 
modern website to deliberately disregard the certificate warnings its users 
will experience with those clients.  The warnings leave an unprofessional 
blemish on the site and likely leave the user confused and questioning the 
site's integrity and professionalism.

My hope is that Google will stick with the SNI path for possible future 
deployment but realize that VIP is the only practical approach at this 
point in time.  This means VIP would need to be offered at an affordable 
price point or perhaps even made available for free.  I can only imagine 
the cost and challenges involved with developing a robust VIP solution in 
the cloud environment.  However, every once in a while a feature is 
significant enough to overlook the NRE and do the right thing in lieu of 
trying to directly recoup costs.  I would argue that SSL on custom domains 
is such a feature.  A proper, affordable SSL solution promotes a secure web 
and benefits the GAE platform.

I wish SNI had been a part of the original TLS spec but unfortunately that 
didn't happen and now we are forced to wait several more years for 
significantly more incompatible clients to flush out of the ecosystem.  The 
alternative is to support SNI and pollute the web with certificate warnings 
when Android and Blackberry clients visit certain GAE sites.  I don't think 
anybody wants this and I hope Google does the right thing.

  - Doug Anderson




-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To view this discussion on the web visit 
https://groups.google.com/d/msg/google-appengine/-/8yEFneGBHzUJ.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2012-04-22 Thread Cayden Meyer
Hi Everyone,

SSL for Custom Domains is still undergoing testing and improvement.

I do not have a timeline to announce at this point, but rest assured that
this is a priority for the App Engine team and it is a feature we are
committed to launching.

Thanks,

Cayden Meyer
Product Manager, Google App Engine

On 20 April 2012 23:54, James Gilliam jimgill...@gmail.com wrote:

 How about some status?

 On Mar 28, 3:34 pm, Kaan Soral kaanso...@gmail.com wrote:
  What is the current status of SSL for Custom Domains, when can we expect
 it
  in production?
 
 
 
 
 
 
 
  On Monday, October 17, 2011 11:13:14 AM UTC+3, Cayden Meyer wrote:
 
   Hey everyone,
 
   I am pleased to announce that we are accepting signups for the SSL for
   custom domains Trusted Tester Program. This will allow you to serve
   secure traffic for your App Engine application from your own
   domain(https://your.domain.com) rather than your appspot.com domain
   (https://your-app-id.appspot.com).
 
   We will be offering two types of SSL service, Server Name Indication
   (SNI) and Virtual IP(VIP). SNI will be significantly less expensive
   than VIP when this service is fully launched, however unlike VIP it
   does not work everywhere SSL is supported, notably it is not supported
   by IE and Safari on Windows XP. Multiple certificates are supported by
   SNI, while the VIP service only supports a single certificate per
   virtual IP address. Wildcard certificates and certificates with
   alternate names are supported by both SNI and VIP.
 
   Either a Free or Paid Google Apps account is required to use SSL. The
   use of multiple domains is supported via the aliasing feature in
   Google Apps.
 
   If you are interesting in signing up to test this feature, please fill
   in the form linked below.
 
  https://docs.google.com/a/google.com/spreadsheet/viewform?formkey=dHF.
 ..
 
   Currently we are testing on a limited basis and will not be able to
   accept everybody who applies to the trusted tester program.
 
   As with all trusted tester programs, documentation is a work in
   progress.
 
   This feature is still in testing and as such we would advise against
   using this on production applications.
 
   If you have any queries, please email google-appengine-ssl-
   feedb...@google.com.
 
   Cheers,
 
   Cayden Meyer
   Product Manager, Google App Engine
   Blogger:http://googleappengine.blogspot.com
   Reddit:http://www.reddit.com/r/appengine
   Twitter:http://twitter.com/app_engine

 --
 You received this message because you are subscribed to the Google Groups
 Google App Engine group.
 To post to this group, send email to google-appengine@googlegroups.com.
 To unsubscribe from this group, send email to
 google-appengine+unsubscr...@googlegroups.com.
 For more options, visit this group at
 http://groups.google.com/group/google-appengine?hl=en.



-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2011-11-01 Thread Nick Johnson
On Fri, Oct 21, 2011 at 7:33 AM, Brandon Wirtz drak...@digerat.com wrote:

 IE5/IE6 will say page cannot be displayed and will never connect.  For
 this reason you should encourage users to arrive at a non-HTTPs version of
 the page, do browser detection and display an Upgrade your browser
 notification, then use the login to take them to the secure version of the
 site.


Doing this will make your users vulnerable to man-in-the-middle attacks: an
attacker could intercept the HTTP request and send back HTTP responses,
with no redirect to HTTPS.

How plausible this is depends on the nature of your app, naturally.

-Nick Johnson


 

 ** **

 ** **

 ** **

 *From:* google-appengine@googlegroups.com [mailto:
 google-appengine@googlegroups.com] *On Behalf Of *Nick
 *Sent:* Thursday, October 20, 2011 1:13 PM
 *To:* google-appengine@googlegroups.com
 *Subject:* [google-appengine] Re: Announcing SSL for Custom Domains
 Trusted Tester Program

 ** **

 What happens when a non-supported browser attempts to access
 https://www.my-sercure-appengine-app.com? Does it redirect to http:// or
 show an error dialog? 

 --
 You received this message because you are subscribed to the Google Groups
 Google App Engine group.
 To view this discussion on the web visit
 https://groups.google.com/d/msg/google-appengine/-/DUTj6iVJ49gJ.
 To post to this group, send email to google-appengine@googlegroups.com.
 To unsubscribe from this group, send email to
 google-appengine+unsubscr...@googlegroups.com.
 For more options, visit this group at
 http://groups.google.com/group/google-appengine?hl=en.

 --
 You received this message because you are subscribed to the Google Groups
 Google App Engine group.
 To post to this group, send email to google-appengine@googlegroups.com.
 To unsubscribe from this group, send email to
 google-appengine+unsubscr...@googlegroups.com.
 For more options, visit this group at
 http://groups.google.com/group/google-appengine?hl=en.




-- 
Nick Johnson, Developer Programs Engineer, App Engine

-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2011-10-31 Thread Richard Watson
Thanks, Jeff. Considering how much noise came of the pricing change, this 
should put some fire in bellies :)

-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To view this discussion on the web visit 
https://groups.google.com/d/msg/google-appengine/-/UNBHi0JEIcQJ.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2011-10-28 Thread Jeff Schnitzer
It was part of a survey question when you filled out the trusted tester
application.  Would you be wiling to pay $100 for VIP?

Jeff

On Fri, Oct 28, 2011 at 4:30 AM, Richard Watson richard.wat...@gmail.comwrote:

 @Jesse - did you make up the $100, or did you see that a guestimate
 somewhere?

 --
 You received this message because you are subscribed to the Google Groups
 Google App Engine group.
 To view this discussion on the web visit
 https://groups.google.com/d/msg/google-appengine/-/UWYYy2efHMwJ.

 To post to this group, send email to google-appengine@googlegroups.com.
 To unsubscribe from this group, send email to
 google-appengine+unsubscr...@googlegroups.com.
 For more options, visit this group at
 http://groups.google.com/group/google-appengine?hl=en.


-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2011-10-20 Thread Waleed Abdulla
Which of the options allows using naked domain? I'm guessing VIP, right?

Waleed



On Thu, Oct 20, 2011 at 9:00 AM, Anton Novopashin antonev...@gmail.comwrote:

 I have filled form allready

  --
 You received this message because you are subscribed to the Google Groups
 Google App Engine group.
 To view this discussion on the web visit
 https://groups.google.com/d/msg/google-appengine/-/V333YDgn0rIJ.

 To post to this group, send email to google-appengine@googlegroups.com.
 To unsubscribe from this group, send email to
 google-appengine+unsubscr...@googlegroups.com.
 For more options, visit this group at
 http://groups.google.com/group/google-appengine?hl=en.


-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



RE: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2011-10-20 Thread Brandon Wirtz
Yes. All the Nakedness happens in the VIP space.  Just like the Clubs in LA.

 

 

From: google-appengine@googlegroups.com
[mailto:google-appengine@googlegroups.com] On Behalf Of Waleed Abdulla
Sent: Thursday, October 20, 2011 12:00 PM
To: google-appengine@googlegroups.com
Subject: Re: [google-appengine] Re: Announcing SSL for Custom Domains
Trusted Tester Program

 

Which of the options allows using naked domain? I'm guessing VIP, right? 

 

Waleed

 

 

On Thu, Oct 20, 2011 at 9:00 AM, Anton Novopashin antonev...@gmail.com
wrote:

I have filled form allready

 

-- 
You received this message because you are subscribed to the Google Groups
Google App Engine group.

To view this discussion on the web visit
https://groups.google.com/d/msg/google-appengine/-/V333YDgn0rIJ.


To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com
mailto:google-appengine%2bunsubscr...@googlegroups.com .
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.

 

-- 
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.

-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



Re: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2011-10-20 Thread Nick
:D

-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To view this discussion on the web visit 
https://groups.google.com/d/msg/google-appengine/-/M-9uy3RrLRsJ.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.



RE: [google-appengine] Re: Announcing SSL for Custom Domains Trusted Tester Program

2011-10-20 Thread Brandon Wirtz
IE5/IE6 will say page cannot be displayed and will never connect.  For this
reason you should encourage users to arrive at a non-HTTPs version of the
page, do browser detection and display an Upgrade your browser notification,
then use the login to take them to the secure version of the site.

 

 

 

From: google-appengine@googlegroups.com
[mailto:google-appengine@googlegroups.com] On Behalf Of Nick
Sent: Thursday, October 20, 2011 1:13 PM
To: google-appengine@googlegroups.com
Subject: [google-appengine] Re: Announcing SSL for Custom Domains Trusted
Tester Program

 

What happens when a non-supported browser attempts to access
https://www.my-sercure-appengine-app.com? Does it redirect to http:// or
show an error dialog? 

-- 
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To view this discussion on the web visit
https://groups.google.com/d/msg/google-appengine/-/DUTj6iVJ49gJ.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.

-- 
You received this message because you are subscribed to the Google Groups 
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.