Background
FTPmail is a system which makes use of the standard utility
software called simple mail transfer protocol (SMTP) available to users
who may only have electronic mail (e-mail) access, such as, via
INMARSAT connectivity between ships at sea and shore ground
communication facilities. This FTPmail application reads a normal
e-mail message content that is constructed with FTP commands. The
process passes the commands to the FTP site process. The FTP process
runs the commands and returns the results as a generated response. The
Gateway e-mail application issues an automated e-mail reply back to the
end user.
The National Weather Service (NWS) runs the FTPmail server
application primarily for mariners who do not have direct access to the
World Wide Web but they do have an e-mail system. This allows them to
access our services and retrieve our products from the tgftp.nws.noaa.gov FTP server. Note - tgftp.nws.noaa.gov is the only valid FTP site for this service. By using FTPmail, a user can request text or graphic files from NWS and
have the requested data automatically mailed back to them as either an
attachment to or content of an e-mail message. The turnaround time is
from thirty minutes to three hours normally, depending upon the path
the e-mail takes.
To get started in using the NWS FTPMAIL service,
follow these simple directions to obtain the FTPMAIL "help" file,
or see: http://weather.noaa.gov/pub/fax/ftpmail.txt.
Caution - Read the help file carefully - 99% of errors using FTPMAIL are simple typo's, incorrect capitalization, failure to send in plain text format, leading or trailing spaces, or failure to set up any spam filters properly.
FTPmail Examples
1. An example of a composed E-mail to get the latest zone forecast for Montgomery County, MD:
e-mail address : ftpmail@ftpmail.nws.noaa.gov
Subject line : anything
Message content :
open
cd data
cd forecasts
cd zone
cd md
get mdz009.txt
quit
2. An example of a composed e-mail to get the current facsimile chart for Atlantic Ocean sea-state analysis would be:
e-mail address : ftpmail@ftpmail.nws.noaa.gov
Subject line : sea-state analysis
Message content for a TIFF version of a Chart :
open
cd fax
get PJAA99.TIF
quit
OR
Message content for a gif version of a Chart :
open
cd fax
get PJAA99.gif
quit
NOTE : You have two choices of format for marine facsimile
charts. Upper case and lower case alpha characters are used for the
"TIFF" and "gif" versions of facsimile products, respectively. If you
fail to use the right case, you will not get an attached product in
your returned Email. Also, the "gif" version of the product will be a
larger attached file than the "TIFF" version. However, the "TIFF"
version requires a image viewer software application or browser plugin
to manipulate and print the chart. These are only examples of the possibilities that can be requested.
Returned e-mail
Possible Status messages - You may get an e-mail status
message back if the server is busy. The subject line will indicate that
action is being taken upon your request.
EXAMPLE :
Subject: ftpmail job queueing for retry queue/01021045116.158296
This status informs you that the FTP server activity is heavy and you are queued in the process of the request. (This is an example and the numbers will change with each status.)
Returned e-mail content - The returned e-mail has a subject
line containing the server address, path, and file name of the original
request. Assuming the request was for the sea-analysis chart in example
2 above the resulting return e-mail would be.
EXAMPLE:
Subject: tgftp.nws.noaa.gov:/PJAA99.TIF uuencoded (get PJAA99.TIF)
The e-mail body content may contain the requested file or it may be
attached for you to file and display by an appropriate software
application. This example would have an attachment containg the
product. Another example, if you were to select a "gif" it would be
contained in the body of the e-mail as it is displayable by the e-mail
system on your computer.
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