Congratulations! You’ve signed up for SendGrid and are ready to configure your account. It’s important to note that these settings are available only in the Account Setup Wizard. If you need to change any settings and are already logged in, you can check your status in the Wizard. If you are not logged in, you [...]

To send email using Thunderbird you will have to modify your outgoing server settings in Thunderbird accordingly. Additionally you can modify settings in Thunderbird that will allow you to include an SMTP API header in your emails if you wish to leverage categories or other features of the SMTP API when sending mail via the [...]

The SMTP API JSON string includes a feature that allows you to attach an unlimited number of unique arguments to your email. The arguments are used only for tracking. They can be retrieved through the Event API or the Email Activity page. These arguments can be add using a JSON string like this: {"unique_args": {"customerAccountNumber": [...]

So, you tried to send a bunch of email, and when you checked your Event API or your Email Activity page, you see a number of messages are marked as “Deferred” instead of “Delivered”. Or maybe you’re looking at your Email Lists, and noticing a lot of addresses in your Soft Bounces, but not many [...]

As we all know, effective and efficient email delivery is a challenge. In a simple email environment, once an email leaves your application, server, or mail client you no longer know what actually happens to that message. It’s out of your hands and in the hands of other mail servers and, if delivered, the recipients. [...]

The X-SMTPAPI header is a JSON-encoded associative array consisting of several sections, below are examples of JSON strings using each section. To: An array of addresses to send the message to. {"to": ["ben@sendgrid.com", "joe@sendgrid.com"]} Substitution: An associative array of substitution tags, where each tag is associated with a list of replacement text for the tag [...]

Categories can help organize your email analytics by enabling you to “tag” emails by type. Just as you can view the statistics on all your activity under the ‘Statistics‘ tab, you can go a step further and view the statistics on a particular category. The events that can be associated with category include: Emails sent [...]

SendGrid’s SMTP API allows developers to deliver custom handling instructions for e-mail. This is accomplished through a header, X-SMTPAPI, that is inserted into the message. The header is a JSON encoded list of instructions and options for that email. An example header looks like this: X-SMTPAPI: {"category" : "newuser"} In this case, the header is [...]

At SendGrid you can set up web hooks to deeply integrate SendGrid’s powerful features with your service or application. SendGrid will notify a URL of your choice events that occur in SendGrid’s infrastructure in real-time. Requests You have the option to receive a HTTP POST request for each event or to receive a batch of [...]