SMTP and API
There are two ways in which you will be able to send emails using ZeptoMail service:
What is SMTP?
SMTP or Simple Mail Transfer Protocol is the method by which any application can connect with an SMTP server to send emails. In-order to use ZeptoMail SMTP servers, you will have to configure your application settings with ZeptoMail's SMTP information.
If your application is already using any other email provider to send transactional emails, it is easier to migrate to ZeptoMail by replacing the existing SMTP settings with ZeptoMail's SMTP settings.
To connect to ZeptoMail via SMTP method add the following details:
- Server name - smtp.zeptomail.com
- Port Number, Authentication - 465 (SSL), 587 (TLS)
- Username - emailapikey (we also support applications that use the From address as the username)
- Authorization - Password. Visit here to check your password
You can use the files uploaded to File Cache as attachments while sending emails using SMTP. Add X-TM-FILE-KEY parameter to the header and enter the File Cache Key as the parameter value.
Example: Multiple file cache keys without name - message.addHeader("X-TM-FILE-KEY", "filecachekey,filecachekey"); Multiple file cache keys with name - message.addHeader("X-TM-FILE-KEY", "filecachekey:name,filecachekey:name");
You can also use X-TM-OPEN-TRACK and X-TM-CLICK-TRACK parameters in the email header to track emails sent via SMTP
- ZeptoMail supports TLS v1.2 for SMTP.
Your application can use ZeptoMail's REST API to make HTTP requests to send emails via ZeptoMail. The HTTP POST request can be made to our send mail API endpoint https://api.zeptomail.com/v1.1/email with the JSON message attached to the body.
Application developers can authenticate API requests to ZeptoMail by adding an authorization parameter as shown below in the header section. This is the Send Mail Token (a unique token for every Mail Agent) that you can generate in your ZeptoMail account.
Authorization - zoho-enczapikey <space> <send mail token>. You can visit here to get your send mail token.
If API requests are made to ZeptoMail without these headers, you will receive HTTP response "401 Unauthorised" error.
Mail Send API - JSON format
JSON messages are passed in the body of the HTTP POST request. You can go to API documentation section to view:
- Download the SDK
Before you get started it is important to know that ZeptoMail is for sending transactional emails like welcome emailers, password resets emails, OTPs. We do not support sending of bulk emails or promotional emails like newsletters or marketing campaign emails. If you are looking for a bulk email provider, you can visit Zoho Campaigns.