Open your email client and start a new email.

For the To address, enter the contact's phone number followed by your email2sms email address.
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For the subject, enter your account code, the destination two-letter country code, and the originator (from name). Each separated by a number sign (#).
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This email address is provided to you, along with your Account code, when you complete the registration process for Email2SMS.
​The phone number can be in international or local format. For example, 447123123123 is international format for the UK. If you use a local format, you must specify the country code using the COUNTRYCODE option and value. For example, Great Britain is GB.

For the message body, enter your message. Remember this is an SMS, so keep it short.
Messages can be a maximum of 10 SMS segments.
​Learn more in SMS message length and Unicode.

At the end of the message body, insert the closing tag #end#. We won't include anything after the closing tag in the message.
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​You must use the #end# tag to make sure you don't include unwanted content and gain unwanted charges.

When you're ready, send your message.