mBox FAQs

mBox™ powered by eFax® is the world leader in internet faxing, offering fast, reliable fax service to countries all over the world. With mBox™ powered by eFax® you can manage your fax messages alongside other document based communications right from your email!

With a 30-day free trial, you are given a chance to experience all the benefits of a full mBox™ powered by eFax® member risk-free for 30 days. Send faxes. Receive faxes. Access all features of the mBox™ powered by eFax® website and Message Center. If you are unsatisfied for any reason, cancel the account before the trial is over and be charged nothing.

NOTE: The 30-day free trial includes free incoming and outgoing faxes for one month within the limits stated in your offer.

A credit card is necessary to help us prevent fraudulent use of mBox™ powered by eFax^® services. During the 30-day free trial, your credit card will not be charged as long as usage does not exceed monthly limits for sending or receiving. At the end of the 30-day free trial, monthly subscription and usage fees will be charged automatically each month.

If you wish to utilise an alternate payment method, please contact our sales department.

You will be able to send and receive faxes immediately upon activation of your account.

With mBox™ powered by eFax^® you can choose a number from thousands of cities all over the world.

Your mBox™ powered by eFax^® number will be a number solely assigned for your use and will function like any normal fax number for your callers.

Your callers will experience no difference from a standard fax machine in using your mBox™ powered by eFax^® number. They will dial the mBox™ powered by eFax^® number just like any other telephone number.

To set your account up to send from your mobile phone:

• Login to your account.
• Click on Preferences.
• Click on Send Options.
• Enter your mobile device email address in the textbox provided.

Once your account is setup, sending a fax from your mobile phone is as easy as sending an email. For more details on sending faxes from email, please click HERE.

You can receive faxes at up to five (5) email addresses per mBox™ powered by eFax^® number.

Yes, you can have multiple fax numbers assigned to your mBox™ powered by eFax® account.

mBox™ powered by eFax® provides numbers in 3,500 cities in 46 countries around the world. For a complete list of cities and countries, please click HERE.

eFax Messenger is a free application you can use to view your faxes. You are not required to download eFax Messenger to view your faxes but if you would like to utilize the application, please visit the download page.

Additionally, with an mBox™ Plus account you can also send faxes through eFax Messenger, including customised cover pages and your own digital signature.

If you would like to sign up for an mBox™ Plus account, please click HERE.

When you sign up for mBox™ powered by eFax®, you are assigned a number provisioned from our pool of numbers.

If you have an existing fax number and would like to continue using it with the mBox™ powered by eFax® service, please contact our sales department to discuss porting your number from your current telecom provider to mBox™ powered by eFax®.

Should you wish to cancel your account, please call Customer Support.

NOTE: Your account will remain active until your cancellation request is confirmed.

To view the pricing for the mBox™ Plus service, please click HERE.

Initial incoming pages received each month to local mBox™ powered by eFax® Numbers are free.

To view full pricing details for local or toll-free/freephone numbers, please click HERE.

The cost to send an individual fax is calculated based on the recipient's location and the length of the document sent.

To view all send rates, please click HERE.

To login to your mBox™ powered by eFax® account, please click HERE.

Enter your mBox™ powered by eFax® Login (international access code and area code first) and PIN in the space provided. For example:

• To login using the UK number +44 (0)20 7555 1234, you would enter 442075551234.
• To login using the US/Canada number +1 323 555 1234, you would enter 13235551234.
• To login using the Australian number +61 (0)2 7010 1111, you would enter 61270101111.

To retrieve a forgotten mBox™ powered by eFax® Login and/or PIN, please click HERE and enter the information requested.

Your login information will be sent to your email address.

To change your PIN, login to your account and go to Profile. Click Change PIN.

There are three places you can update your email address:

• Contact email address — Any updates concerning your account will be sent to this email address. To change the contact email address, login to your mBox™ powered by eFax® account and click Profile.
• Inbound email address(es) — You can receive faxes simultaneously at up to 5 email addresses. To update your inbound email address(es), login to your account and go to Preferences. Then select the Receive Options tab.
• Send email address(es) — You can send from up to 5 email addresses. To update your send email address(es), login to your account and go to Preferences. Then select the Send Options tab.

To update your billing information, login to your account and click on Billing.

When someone sends you a fax, the message is delivered to the email address on your account.

• Faxes will come from the email address message@inbound.efax.com.
• The subject line of your email will be "Fax Received From (Fax Number)".

Faxes are also delivered to the eFax Message Center. Faxes are received and stored for up to two years or until you delete them. To access the eFax Message Center, login to your eFax account and click on the eFax Message Center link.

As an mBox™ Plus customer, you have the option of accessing your messages in two ways. You can view your faxes through your email or you can login to your mBox™ Plus account and retrieve your faxes through the eFax Message Center.

To access faxes through your email:

• Login to your email account.
• Open the email message from inbound@mail.efax.com.
• Open the attached file.

To access faxes through eFax Message Center:

• Login to your eFax account.
• Click on eFax Message Center.
• To open a fax, double-click on the Subject.
• Open the fax attachment by clicking on the File Name at the bottom of the screen.
• Once the fax attachment is open, you can click the Download button and save the fax to your computer.

NOTE: Faxes received in .EFX format can only be opened with eFax Messenger Software. To download eFax Messenger, please visit the download page. If you would like to receive your faxes in .PDF or .TIF, please click HERE for further details.

To download eFax Messenger, please visit the download page.

You can choose to have faxes delivered in one of three different file formats:

• PDF, which can be viewed with the Adobe Acrobat Reader software.
• EFX, which can be viewed through your eFax Messenger software.
• TIFF, which supports multi-page images and can be opened in many programs, including Imaging (the default Windows TIFF viewer) and eFax Messenger.

To change the your fax file format:

• Login to your mBox™ powered by eFax® account.
• Click on Preferences.
• Click the Fax Options tab.
• From the Fax File Format drop-down menu choose the format in which to receive faxes: EFX, TIF, or PDF.
• Click Update.

NOTE: This change will only affect faxes received after the new file format is selected. Faxes received prior to this change will remain unchanged.

You can open your faxes two ways:

• Click on the attachment in the email message from mBox™ powered by eFax® and your faxes should open automatically in Preview.
• Log in to your account, click Message Center and you will be able to view all of your faxes received within the last two years. You can Read your faxes, Save them or Forward them to a separate email address(es). When you open the file attachment, preview will automatically open.

If someone outside of the country would like to send you a fax, they will need to dial your mBox™ powered by eFax® number using the standard methods for international dialing from their country.

For example, if you have a UK mBox™ powered by eFax® number, the person faxing you needs to drop the local dialing code "0" and they need to add the country code "44".

The number (0)20 7555 1234 would become +442075551234.

To obtain a list of international dialing codes, please click HERE.

Your eFax number works just like any regular fax number. Potential senders do not need to be mBox™ powered by eFax® subscribers. Anyone can send a fax to your mBox™ powered by eFax® Number.

Faxes can be sent from an mBox™ Plus account using any one of the methods:

• Send Faxes through your email
• Send Faxes through the mBox™ powered by eFax® Website
• Send Faxes through eFax Messenger

NOTE: An mBox™ Plus account is required for sending faxes. Free accounts do not have the ability to send faxes.

To send a fax through your email, please follow the directions below:

• Open an outgoing email message.
• In the To: field, enter the recipients Fax Number followed by @efaxsend.com. For example:

For a complete list of Country Codes, please click HERE.

• Attach the file(s) you would like to send to the outgoing email message (maximum 10).
• The body of the email works as your cover page. If you would like to include a cover page, please enter the text in the body of the email message.
• Click Send.

To send a fax from the web:

• Login to your mBox™ powered by eFax® account.
• Click Send A Fax.
• Select the Country Code of the number you would like to send to.

For a complete list of country codes please click HERE.

• Enter the Fax Number of the recipient.

• Enter the Name and Company of the recipient.
• Type the Subject and your Cover Page message in the fields provided.
• Next, select the document(s) you would like to send (maximum 5). Click Browse to find the file(s).
• Click Send when the form is complete.

To send a fax through eFax Messenger:

1. Locate the Compose Fax icon on your desktop.
2. Double-click the icon to open the Compose Fax window.
3. When the Compose Fax window appears, enter the recipient’s contact information, such as their Name and their Company, if applicable.
4. Enter the destination Fax Number. Verify the proper Country Code is selected.
5. Click on the Add button to include the person in the list of recipients.
6. Repeat steps 3, 4, and 5 for each additional recipient, if any.
7. If you would like to send a cover page with your document, enter the Subject and Message in the fields provided.
8. Select the document(s) you would like to send. In the Attachments field, click the Attach button at the bottom of the screen to locate the files you would like to upload (maximum 5).
9. Click Send Fax.

When you send a fax, a Send Confirmation Receipt will be sent to your email address confirming transmission. Additionally, you may also log in and view the send activity log online.

To view activity online:

• Login to your mBox™ powered by eFax® Account
• Choose Activity Logs from the menu on the right
• Send Activity Logs are displayed by default. If you wish to view Received Fax Logs, click the Receive Logs tab.

If you sent the fax through your email, the outgoing message should be saved in your Sent Items. You can resend it using your email client's native sending options.

To resend a fax through eFax Messenger 4.0 or higher:

• Open eFax Messenger and click the link that says Sent Faxes.
• Select the fax you would like to resend and Double-Click to open.
• Click the Resend Fax button on the eFax Messenger toolbar at the top of the screen. The compose fax window will appear. You can Add new recipients, Edit or Remove former recipients, or Attach new files at this time.
• When you have completed your new fax, click the Send Fax button on the eFax toolbar.

Faxes sent from the web cannot be resent.

Please see below for a list of countries you can send faxes to using your mBox™ powered by eFax® account.