System Characteristics
This section contains an overview of the essential characteristics of the eFax Enterprise API, including allowable message sizes, supported file types, and send transmission error codes.
Message Sizes/Payload Limits
The application provider must work within the following limitations / parameters when sending faxes:
| Parameter |
Value |
Notes |
| Maximum number of recipients per fax |
50 |
User can add more than 50 recipients per fax; however, anything above 50 is simply ignored due to configuration limitations in the send system. |
| Image resolution |
Standard or Fine |
Default value is Fine. |
| Billable retry attempts |
Minimum of 1, maximum of 10. Default is 2 attempts. |
Retry duration is set to 2 minutes. |
| Non-billable retry attempts |
Minimum of 1, maximum of 10. Default is 5 attempts. |
Retry duration is set to 2 minutes. |
| Human answer attempts |
Minimum of 1, maximum of 3 |
|
| Attachments per fax |
Maximum of 25 |
|
| File size limits |
100MB |
This is the total maximum size of the fax payload, including base64 encoding.
|
| Supported file types |
Various |
See table of supported file types below. |
Supported Sent Transmission Error Codes
The following error codes are supported for sent transmissions:
| Status |
Description |
Billable |
Non-Billable |
| E06 |
Unspecified system error |
X |
|
| E07 |
Rast farm error |
|
X |
| E41 |
Number busy |
|
X |
| E42 |
No answer |
|
X |
| E43, E33 |
Human answer |
X |
|
| E44 |
Interrupted fax transmission |
X |
|
| E45 |
Transmission cancelled by sender |
X |
X |
| E46 |
Fax expired |
X |
|
| E49 |
Communication error |
|
X |
| E51 |
Destination fax number format invalid |
|
X |
| E52 |
High risk destination fax number |
|
X |
| E53 |
Destination fax number not allowed |
|
X |
The SFAX code indicates a successful fax transmission and is billable; it should not be considered an error code.
Supported File Types
The eFax Enterprise API supports the following file types for all outbound faxes.
Word-Processing Formats
| Document Type |
Versions |
Extensions |
| Corel Word Perfect |
v. 5.x., 6, 7, 8, 9, X6 |
WPD, WP5, WP6 |
| Microsoft Word |
Windows: v.97, 2000, 2003, 2007, 2010, 2013; Mac: v.4, 5.x, 95, 98 |
DOC, DOCX |
| Microsoft Word Template |
Windows: v.97, 2000, 2003, 2007, 2010, 2013; Mac: v.4, 5.x, 95, 98 |
DOT, DOTX |
| Microsoft Works Word Processor |
v.4.x, 5, 6, 7, 8.x, 9 |
WPS |
| OpenDocument Text |
All versions |
ODT |
| Plain Text |
All versions |
TXT, DOC, LOG, ERR, C, CPP, H, SRC |
| Rich Text Format |
All versions |
RTF |
| StarOffice Text Documents |
All versions |
SXW |
Spreadsheet Formats
| Document Type |
Versions |
Extensions |
| Comma Separated Values Format |
All versions |
CSV |
| Microsoft Excel |
v. 5, 95, 97, 2000, 2003, 2007, 2010, 2013 |
XLS, XLSX |
| OpenDocument Spreadsheet |
All versions |
ODS |
| Quattro Pro |
v. 6 and above |
QPW, WB1, WB2, WB3 |
| StarOffice Spreadsheets |
All versions |
SXC |
Graphic Formats
| Document Type |
Versions |
Extensions |
| Adobe Photoshop |
v. 3.0 and above |
PSD |
| Amiga Interchange File Format |
Raster Bitmap only |
IFF |
| Compuserve Graphics Interchange Format |
GIF87a, GIF89a |
GIF |
| Joint Photography Experts Group |
All versions |
JPG, JPEG |
| OpenDocument Drawing |
All versions |
ODG |
| PC Paintbrush Graphics |
All versions |
PCX |
| Portable Network Graphics |
All versions |
PNG |
| StarOffice Drawing |
All versions |
SXD |
| Tagged Image File Format |
All versions |
TIF, TIFF |
| Truevision Targa Format |
All versions |
TGA |
| Visio Drawing |
v. 3 and above |
VSD, VSDX |
| Windows Bitmap |
All versions |
BMP |
| Word Perfect Graphics |
2.0 and above |
WPG |
Publishing Formats
| Document Type |
Versions |
Extensions |
| Hypertext Markup Language |
HTML only with base href tag required |
HTM, HTML |
| Microsoft Publisher |
v. 98, 2000, 2002, 2003, 2007, 2010, 2013 |
PUB |
Cross-Platform Formats
| Document Type |
Versions |
Extensions |
| Adobe Portable Document Format |
All versions |
PDF |
| Adobe Postscript |
All versions |
PS |
| Messenger Document Format |
Messenger |
EFX, HOT |
| Encapsulated Postscript |
All versions |
EPS |
| jConnect Messenger Document Format |
Messenger |
JFX |
Presentation Formats
| Document Type |
Versions |
Extensions |
| Corel Presentations Slide Show |
V. 96 and above |
SHW |
| Microsoft PowerPoint |
v. 4 and above |
PPT, PPTX |
| OpenDocument Presentation |
All versions |
ODP |
| StarOffice Presentation |
All versions |
SXI |
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