Well, it’s more than a boat is a cruise ship, the Norweigan Cruise LinesEscape. We will be departing from Miami with port stops in Falmouth (Jamaica); George Town (Grand Cayman); Great Stirrup Cay (Bahamas); Nassau (Bahamas); and come back to Miami.
Chris Woodruff and I will be providing 2 and half days of instruction on .NET Core at TechOutbound. It’ll be a combination of instruction and hands on workshops. Here’s the topics we will be covering.
Entity Framework Core 2.0
ASP.NET Core MVC
ASP.NET Core Web API
Client-side Development with ASP.NET Core
Security and Identity
Debugging and Performance
Hosting and Deployment
Migrating from.NET Framework
Docker and Containers
ASP.NET Core and the Cloud
Register now by following the instructions and use code BFFJG when you do for an additional $100 off your registration
Me too, or at least I was… While the problem I was having might not be related to SendGrid exclusively, I am going to talk about the solution.
Before I go into the solution, let’s talk about the problem first. Many of you know that I run Desert Code Camp in Chandler, AZ. Originally, the site ran on the Microsoft stack, it used ASP.NET (Web Forms) and SQL Server. There is an API for mobile apps and future development but that’s another story. The site has 12,000 registered users. A few thousand are SPAM/Bots, a few thousand are “inactive” accounts (opted out or moved), and the other 6000 or so are active users that have an interest in Desert Code Camp or have attended at least one.
And here lies the first problem.
When an announcement email goes out to our attendees or users of the site, we need to send out about 6000 emails. I used to do this by sending the email from a web page through code using System.Net.SMTP via localhost. At first, it wasn’t an issue. After a while, as Desert Code Camp grew, this became more and more of a problem. Typically the page would time out or IIS would die or something. So I needed to find a solution. Sometime last year, probably around this time, I offloaded the processing of emails to Azure Queue Storage and used Azure WebJobs to handle the “logic”. But wait, Azure does not support sending stuff via localhost. And that is true! This is where SendGrid comes into play. Azure provides, as of the creation of this post, a free 25,000 email per month subscription to SendGrid. For more on that, check out this post.
Now that I implemented the new Azure/SendGrid combination everything was great.
Fast forward a year, to this past weekend, I announced that the next Desert Code Camp was happening on Twitter and some people started submitting sessions. This is great! But I noticed that I was wasn’t getting my emails about the submissions. At first, I thought, “Oh Joe, you forgot something when you ‘created’ the new event”. It happens every time :). However, this was not the case this time. Microsoft decided to embrace something called DMARC, Domain-based Message Authentication, Reporting & Conformance. In a nutshell, it checks to see if you are sending emails from the domain you claim you are sending them from, which for me was bad. Not because I was trying to be deceitful, but because I was sending emails saying they were from ‘@hotmail.com‘ and sending them via ‘SendGrid‘ because I wanted people to reply to my Hotmail address. Well, when Microsoft implemented the DMARC…
What this means: As of June 2016, you can no longer send with the From address being anything from a Microsoft address when sending to a domain that checks DMARC before accepting mail.
… it saw my email as not being ‘legitimate‘ and did not deliver it to my inbox and probably others.
The answer is ‘Whitelist‘ your domains while using SendGrid. There are more detailed instructions on how to whitelist a domain using SendGrid here.
What is Whitelabeling?
Whitelabeling allows you to send through your own custom domain instead of SendGrid’s default settings. This will mask the header information of your emails with your data–not theirs–and will improve your email deliverability.
Luckily, SendGrid makes it easy to whitelist your domain(s). Here is how you do it. Please note:You will need access to your domain records, you will be making changes to your TXT or CNAME entries to prove you have rights to the domain.
SendGrid will walk you though everything else you need.
But what about the replies to @Hotmail.com
I’m glad you are still with me :). This part is the easy part. Essentially, I added ‘firstname.lastname@example.org‘ as the ToAddress and added ‘email@example.com‘ as the ReplyTo. As shown in this gist.
I hope this saves you some time to troubleshoot mail delivery to @hotmail.com, @outlook.com, @live.com, @msn.com, @yahoo.com, and @gmail.com.
In my previous post, I talk about why you can not add Visual Studio Online to an Existing Windows Azure MSDN benefit subscription. In this post, I will show you how to add and existing Visual Studio Online (formally know as TFS Online) to your existing Windows Azure account.
First you have to sign in to your Windows Azure account. You should see something like this.
Click on the Add Subscription button. This will take you to the Add Subscription page. You should see a few choices, scroll down until you see the “Pay-As-You-Go” selection highlighted below.
You should then be brought to the purchase section,
Note, you might have to validate your mobile number and/or put in a credit card number. Click purchase, and after a minute or so, your “Pay-As-You-Go” account is established. You can view it by clicking on the Portal button or visiting the Windows Azure Portal.
Linking Your Existing Visual Studio Online Account
Now that you have the “Pay-As-You-Go” account added to Windows Azure, we can click on the Visual Studio Online tab in the Windows Azure portal
or click the new button.
If you click, the new button you will have to navigate to “App Services”, then “Visual Studio Online”, then “Link to Existing”. For me, since my Windows Azure credentials were the same as my Visual Studio Online credentials, it automatically populated the account name. Click the button and the Link to Existing Account message will appear.
Once the account has been linked you will see the account ready screen.
Now, from the Windows Azure dashboard, you will see your Visual Studio Online account.
I don’t know about you but when I watched the Visual Studio launch earlier this week I was really excited about some of the cool new features added. The first thing I wanted to try out was Visual Studio Online. I figured I have a Windows Azure account setup through my MSDN subscription so I’d be set. Unfortunately, like most people found out when they tried to add their Visual Studio Online account they could not. We were all getting this message…
I went to the Windows Azure account portal to make sure that I did have an active subscription, in fact I have two, but I still could not add or link my existing Visual Studio Online account. I posted a message on one of the Windows Azure list and after a few hours some one pointed me to this forum post. This forum post explains why you can not add an Visual Studio Online account to an existing Windows Azure MSDN account. It essentially boils down to billing. The Windows Azure MSDN benefit has the ability to “cap” the spending in Windows Azure. This does not work for Visual Studio Online. If you think about it, it makes sense. Do you not want to lose access to your source code because you hit your spending limit? Probably not. In order to add your Visual Studio Online account you have to get create a Windows Azure “Pay as you Go” subscription. Don’t worry, you get a bunch of the benefits free.
Within a Visual Studio Online account, you simply pay for user plans for the users who join your account and for resources that are shared amongst all users on the account. The first five users with the Basic plan and all eligible MSDN subscribers (Visual Studio Professional with MSDN and above) can join your account at no charge. Learn more about Visual Studio with MSDN.
Next up in the series is customizing the Windows Azure Web Site. Note:This blog post is based on the Preview version of Windows Azure Web Sites and might change in the future.
Note: There is an article on the Windows Azure site that will cover some of this content.
When you first come to you web site from the management portal you are presented with a screen similar to this.
The start page gives you three options:
Get the tools
WebMatrix is a free, lightweight web development tool that includes everything you need to create web sites and publish applications for Windows Azure. WebMatrix supports the latest web technologies, including ASP.NET, PHP, HTML5, CSS3, Node and more. The Windows Azure SDKs allow you to build applications that take advantage of Windows Azure’s scalable cloud computing resources.
Clicking on this link will redirect you to the latest and greatest version of WebMatrix.
Install a Windows Azure SDK
Clicking on this link will redirect your to the downloads page for all of the Windows Azure SDKs. There are SDKs available for Mobile development, including Andriod, iOS, Windows Phone 8, and Windows Store. Here are some of the others
.NET: Visual Studio 2010, Visual Studio 2012
Media libraries and player frameworks.
Publish your app
After you set up a web site and dependent resources, such as a database, you can download the generated publish profile, import it into a development tool such as WebMatrix or Visual Web Developer, and deploy your web site to Windows Azure within seconds. You can also publish your web application from FTP directly by setting up deployment credentials in the portal and pushing the application to Windows Azure from your favorite FTP client.
There will be more on this in a future blog post.
Integrate source control
Set up continuous deployment from source control providers like TFS, CodePlex, GitHub, Dropbox, or Bitbucket. You can also deploy from a local Git repository on your machine.
There will be more on this in a future blog post.
The dashboard allows you to see some performance metrics of your site. These are CPU Time, Data In, Data Out, HTTP Server Errors, and Requests.
The usage overview shows you where you might be in trouble of hitting the limits of the the type of site you have (free, shared, reserved).
This shows you every thing that you will need to connect to your Windows Azure services.
The monitor displays the some of the web sites performance counters like CPU time, Data In, Data Out, etc.
Choose the version of .NET language runtime to use. The current supported version is v.3.5 and v4.5
Choose the version of PHP to use. The current supported versions are 5.3 and 5.4.
Lists the domain names that are associated with your account. If you have a Shared or Reserved instance, you can click on Manage domains to add or remove domains or subdomains.
You can turn on any of the application diagnostics like application logging to the file system and application logging to a Windows Azure Storage account.
You can turn on any of the three site wide diagnostics settings like Web Server Logging, Detailed Error Messages, and Failed Request Tracing.
Endpoint monitoring lets you monitor the availability of HTTP or HTTPS endpoints from geo-distributed locations. You can test an endpoint from up to three geo-distributed locations. A monitoring test fails if the HTTP response code is greater than or equal to 400 or if the response takes more than 30 seconds. An endpoint is considered available if its monitoring tests succeed from all the specified locations.
Specify name/value pairs that will be loaded by your web application when it starts.
Show any connection strings associated with linked resources.
Use this setting to add, remove, or reorder your web site’s default documents.
Specify a custom script processor to handle requests for the file extension that you specified. To do this, provide a path for the custom script. The path must be relative to the FTP root directory of the web site. You can use optional arguments.
Windows Azure offers three modes for you to run your web sites: Free, Shared, and Reserved. In the Free and Shared modes, all web sites run in a multi-tenant environment and have quotas for usage of CPU, memory, and network resources. You can decide which sites you want to run in Free mode and which sites you want to run in Shared mode. Shared mode employs less stringent resource usage quotas than Free mode. The maximum number of sites you can run in Free mode may vary with your plan. When you choose Reserved mode, all your web sites run in Reserved mode on dedicated virtual machines that correspond to standard Windows Azure compute resources.
Note:This can affect the cost of running your web site on Windows Azure.
This count denotes the number of processes dedicated to a web site. By increasing the value for this setting, you can scale your web site for additional throughput and availability.
Note:This can affect the cost of running your web site on Windows Azure.
This will show you a list of other Windows Azure Services that you have linked or attached to the web site, like a database.