Connecting to our gateway via SMTP Connectivity from legacy servers.
If you want to send SMS from a legacy server, the best way is often with a server-generated e-mail
and so SMTP is the connection you need. This is the industry standard used by operators
to interconnect for high-volume messaging. It's also particularly useful for notification alerts.
What you can do when you connect via SMTP:
Like all our APIs, the SMTP connection supports text, Unicode, binary SMS and flash messaging.
It gives you support for extended length messages.
You're able to use our converters to turn ringtones and logos into the correct format.
You can use our VCard and VCal converters.
Delivery acknowledgement and sender ID can be set up.
You will have access to gateway escalation which prompts an escalation to an alternative delivery gateway, should the message be delayed for a predefined length of time, and queuing which lets you specify up to 3 prioritised queues according to which your messages will be sent out.
Delivery delay gives you the ability to specify a delay of up to 7 days when sending messages.
You can set up batch sending.
While two-way messaging is not a feature of SMTP you can always make use of
HTTP, FTP or SMPP to receive incoming messages.
There's no charge to connect to our gateway using the SMTP API. To send messages via the gateway you
need simply to purchase message credits. The cost of these varies depending on the volume purchased
and the destination you intend sending to.
We have a convenient calculator to help you calculate your message costs.
Trying out connection via SMTP
Sign up and we'll give you 10 free message credits which you can use to test the connection.
Once you have registered and been activated you will receive 10 free credits with which to test our service.
Have the number you wish to send to ready in international format e.g. 448311234567.
Open your Email client (e.g. Microsoft Outlook). Create a new email in text (not html) format. In the address field type: sms@messaging.clickatell.com
Type your account and message details in the body of the email, laid out as follows
user:xxxxx
password:xxxxx
api_id:xxxxx
to: 448311234567
reply:youremail@yourdomain.com
text:Meet me at home
SMS Scripts
