Easily install and onboarding to send a new SMS directly from Microsoft 365 Outlook. Request the install file now.
Microsoft 365 Outlook Add-in


CompleteSMS for Outlook
Send SMS from Outlook using our Outlook Add-in that can be used in both, Classic and New Outlook on Microsoft 365.
You know SMS is the fastest way to reach someone, but you live in your inbox at work.
Text them from your inbox.
- Message deliver as SMS.
- Replies appear in your Outlook inbox.
- You can even respond to them from Outlook.
This isn't just ANY add-in...
It's your answer to sending SMS from Outlook:
1. Contacts
Use existing Outlook contacts and lists or type in numbers as you go
2. Character Count
See the character count as you go, so you’re not surprised how many credits were spent on each message
3. Templates
No need to type messages over and over, store templates and select from a dropdown
4. Signatures
Just like email, you can have a default signature stored so you don’t have to type it in either
5. Schedule Messages
Schedule messages for future sends; so you don’t have to remember to do it later
Once installed, either by your admin or yourself on Outlook’s web access, you can utilize it from your locally downloaded application as well as your smartphone Outlook app.
Toggle back and forth from Classic to New as much as you want, and you’ll still be able to send texts either or both.
How to Send SMS from Outlook
CompleteSMS for Outlook makes it simple to send and receive SMS messages from Microsoft 365:
- Open any email in your inbox: Here you’ll find the CompleteSMS icon (after you’ve install the add-in)
- Open interface: Click on the CompleteSMS icon and select Send SMS
- Add recipients: Choose recipients from your Outlook contact list or add them one at a time in the recipient field
- Compose your message: Remember to keep it short, no one wants a wall of text
- Click send: You can also schedule your message with a couple more clicks
Then wait for replies to roll in as emails in your Outlook inbox. You can respond to those replies by selecting the icon again and picking Reply to SMS from the dropdown.
If you don’t know what version you’re using check out Microsoft’s Support pages.
*CompleteSMS is a custom install, just contact Support for the installation file.
More Features of CompleteSMS for Outlook


Don't use Outlook? What about Gmail?
CompleteSMS has a Gmail Add-on for the Google die-hards out there.
Send SMS through your Gmail interface or through the Gmail App on your phone.
SMS Office 365 FAQs
Here are answers to some of the most frequently asked questions about CompleteSMS for Outlook.
Contact UsNo, The Microsoft 365 Suite (formerly Office 365) doesn’t have a built-in feature to send SMS messages anymore. However, third-party integrations like CompleteSMS for Outlook can bridge this gap. Our service integrates seamlessly with your Classic and New Outlook applications to allow for SMS communication.
By using our Outlook add-in businesses can maintain professional communication and enhance customer engagement. SMS functionality is now crucial for your workflow, consider exploring our software.
When comparing SMS and email for secure communications, email generally offers more robust security features, especially when combined with encryption. However, both methods have vulnerabilities. SMS is susceptible to interception and SIM swapping, making it less secure for sensitive information. Conversely, email is vulnerable to phishing attacks.
Consider using dedicated authentication apps for secure communications. CompleteSMS for Outlook can provide an additional layer of security by managing SMS communications. It allows organizations to minimize risks associated with SMS and email, ensuring safer interactions.
Microsoft 365 (formerly Office 365) doesn’t natively support direct one-way SMS sending. To achieve this functionality, install CompleteSMS for Outlook and configure it with your Microsoft 365 account. Our software allows you to send bulk text messages or individual messages without requiring a reply. Our service handles interfacing with different carriers, enabling efficient and reliable SMS delivery.
You won’t be limited with one-way texting, our service office two-way texting from all long-codes.
{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [{
"@type": "Question",
"name": "Can You Send SMS Messages From Office 365?",
"acceptedAnswer": {
"@type": "Answer",
"text": "No, Office 365 doesn't have a built-in feature to send SMS messages. Microsoft doesn't provide a native SMS sending capability within the core Office 365 (Microsoft 365) suite. However, third-party integrations like OfficeSMS 365 can bridge this gap. Our service integrates seamlessly with your Office Outlook application to allow for SMS communication.
By using OfficeSMS 365, businesses can maintain professional communication and enhance customer engagement. If SMS functionality is crucial for your workflow, consider exploring our software."
}
},{
"@type": "Question",
"name": "Which Is Safer, SMS or Email?",
"acceptedAnswer": {
"@type": "Answer",
"text": "When comparing SMS and email for secure communications, email generally offers more robust security features, especially when combined with encryption. However, both methods have vulnerabilities. SMS is susceptible to interception and SIM swapping, making it less secure for sensitive information. Conversely, email is vulnerable to phishing attacks.
Consider using dedicated authentication apps for secure communications. OfficeSMS 365 can provide an additional layer of security by managing SMS communications. It allows organizations to minimize risks associated with SMS and email, ensuring safer interactions."
}
},{
"@type": "Question",
"name": "How Do You Send a One-Way SMS From Office 365?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Microsoft Office 365 doesn't natively support direct one-way SMS sending. To achieve this functionality, install OfficeSMS 365 and configure it with your Microsoft 365 account. Our software allows you to send bulk text messages or individual messages without requiring a reply. Our service handles interfacing with different carriers, enabling efficient and reliable SMS delivery."
}
}]
}

Talk to an Expert
Our SMS expert, John, will give you a full demo of our software and answer any questions you have.
Schedule Your Demo