SMS and voice calls by email send.
With Mail2SMS from LOX24, every email becomes an SMS or an audio call. This is the fastest way to extend machines, alarm systems, monitoring tools, or older software with SMS: What an email can send can now also send SMS. Without a new interface, without programming.
- Every system with email
- SMS or phone call
- Two variants
From the email to the SMS
SMTP → SMS
01 · ADDRESS
Set destination address
You enter a LOX24-Mail2SMS address as the recipient. Depending on the variant, the phone number and access data are included in the address or in the text of the email.
02 · SEND
Send an email
Your device or software sends the email as usual via SMTP. You don't need to change anything on your system.
03 · DELIVERY
SMS or call goes out
LOX24 turns text and text messages into an SMS, and if desired, a phone call, and makes it available in seconds.
Variations
2 Ways
DELIVERY
SMS or call
Typical senders of Mail2SMS
Machines
Alarm systems
Monitoring
Building technology
Legacy ERP
Ticket systems
Preparedness
Machines
Alarm systems
Monitoring
Building technology
Legacy ERP
Ticket systems
Preparedness
WHY MAIL2SMS
If an API is too much work
Many devices and older programs cannot handle the REST API, but almost all can send an email. Mail2SMS does just that. It does not build any integration; it simply enters a recipient address.
COMPATIBILITY
Flexible
CANAL
VARIANT A
Everything is contained in the recipient address
The phone number, access, and all options are listed in the address. The subject and text of the email remain free. This is ideal for devices and programs where you cannot influence the content of the email, such as fixed alarm notifications from a control system.
- The content of the email is up to you; you can choose the subject line, text, or both as SMS.
- SMS or voice call via the service code text2speech
- Shipping to an entire group via @email2bulk.lox24.eu
- Encoding and maximum number of SMS parts are controllable
- Custom Email2SMS API key, separate from your API key
1234567.e3f3a7…xxxx.491701234567.direct.2.1.2.3@mail2sms.lox24.eu
// Construction, separated by points
user_id Your LOX24 customer number
api_key Email2SMS API Key
phone Recipients, E.164 without +
service_code direct or text2speech
sender_id Registered sender 1–6
text_source 0 Subject + Text · 1 Subject · 2 Text
encoding 0 GSM · 1 Unicode · 2 automatically
max_sms_parts 1–10 SMS parts
// To a group: …@email2bulk.lox24.eu with group_idTo: +491701234567@email2sms.lox24.eu
Subject: Appendix 3: Pressure below the limit value
Text: 1234#81dc9bdb…#d05512345Appendix3#
// Text structure: ID#API Key#Service ID #Sender
// The subject line becomes the SMS, up to 1,520 characters
// Fixed address, recipient in text:
To: email2sms@lox24.eu
Text: 1234#81dc…#d05512345Attachment3##+491701234567VARIANT B
Access in the text, message in the subject
The classic variant: You send to the @email2sms.lox24.eu number or to a fixed address. The access details, shipping method and sender are listed in a line in the text, and the message in the subject line. This works if your system can freely format the email text.
- Short, readable recipient address; the API key is not included in the address
- Fixed destination address possible; the phone number is then included in the text
- Sender can be selected freely, up to 11 characters or 15 digits
- SMS with up to 1,520 characters, automatically concatenated
- Error email when the tax line is incorrectly set up
COMPARISON
Which variant is suitable for your system?
The rule of thumb: If you can only enter the recipient address, use variant A. If you can customize the subject and text, variant B is often more clear. Both work with the same LOX24 account.
VARIANT A
Everything in the address
@mail2sms.lox24.eu
- Recipients
- In the address, as E.164 without the +
- Access
- user_id and Email2SMS API key in the address
- SMS text
- Subject, text, or both, selectable freely
- Channels
- SMS or voice call, also for groups
- Errors
- Most errors are ignored
For devices and programs with fixed mail content.
VARIANT B
Access in the text
@email2sms.lox24.eu
- Recipients
- In the address or in the text
- Access
- Account number and API key in the first text line
- SMS text
- From the subject line, up to 1,520 characters
- Channels
- SMS
- Errors
- Error email for incorrect tax line
For systems that can freely format the text of the email.
WORTH KNOWING
Details for a clean operation
A few technical points that will help with setup, especially for older devices and mail servers.
DIRECTIONAL GUIDANCE
FORMAT
SIGNS
FOR EVER
SENDER
GROUPS
Security: use your own Email2SMS API key
In variant A, the key is stored in the recipient address and can end up in address books or mail logs. Therefore, use the separate Email2SMS API key from your LOX24 settings. It can be recreated at any time without affecting your other interfaces.
USE CASES
Where Mail2SMS is used
FAQ
Frequently asked questions about Mail2SMS
What is Mail2SMS from LOX24?
Mail2SMS is an interface from LOX24 that converts emails into SMS or phone calls. You send an email to a special address, and LOX24 converts the content into SMS. For this, your system only needs the ability to send emails.
Which of the two variants should I choose?
Option A, where you can only enter the recipient address and the content of the email is pre-defined. Option B, where your system can customize the subject and text. Both work with the same LOX24 account.
Can I also trigger a voice call?
Yes, with variant A. Enter the service code in the address text2speech, Then a phone call reads the message out loud.
Can I send to multiple recipients at the same time?
Yes. With Variant A, you send to a group from your LOX24 address book, via the address …@email2bulk.lox24.eu with the group ID instead of the phone number.
Which part of the email is being converted into SMS?
In variant A, you choose it yourself: subject and text; only the subject or only the text. In variant B, the subject becomes the SMS message, the text contains the tax line.
How long should the message be?
With variant B, up to 1,520 characters. Longer messages are automatically distributed over multiple SMS messages. With variant A, you set the max_sms_parts Fixed how many SMS parts are allowed to be created at most.
Is my API key secure in the address?
The address can appear in mail logs or address books. For variant A, therefore, use the separate Email2SMS API key from LOX24, which you can create again at any time. In variant B, the key is in the text instead of in the address.
Why isn't my SMS coming through?
Common causes are forwarded emails that the gateway does not process, an HTML text in variant B, or a typing error in the address. In variant B, you receive an error email when the tax line is incorrect.
Can recipients reply to the SMS?
Yes, in two ways. LOX24 sends answers to Economy SMS messages to Germany and Switzerland to you for free via email. With a dedicated inbound phone number starting at €29 per month, you receive all answers via email, webhook, or in your LOX24 inbox. This way, for example, you can receive an alarm via SMS reply.
How much does an SMS via Mail2SMS cost?
The normal prices of the LOX24 price list apply, excluding any additional fees. A text message to Germany costs between 6.9 and 8.0 cents, depending on the shipping method and tariff level.
Can I test Mail2SMS for free?
Yes. After registering for free at LOX24, you receive 50 cents in starting funds and can immediately send a first test email.
Preferably via REST API?
If your system can send HTTP requests, the SMS API from LOX24 offers more possibilities, such as delivery reports via webhook.
Go to SMS APIRELATED
Other ways to send SMS messages
Mail2SMS is one of several ways to access the LOX24 SMS gateway. All of them use the same account.
The first SMS via email, in five minutes
Register for free, get your Email2SMS API key and send a test email. With 50 cents in starter credit, no monthly fee and no contract.
EVERY SYSTEM WITH EMAIL
NO BASE FEE
SMS AND PHONE CALLS