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Pop3
Message
General information
Forum:
Visual FoxPro
Category:
West Wind Web Connection
Title:
Re: Pop3
Miscellaneous
Thread ID:
00611112
Message ID:
00612005
Views:
28
http://sunsite.dk/RFC/rfc/rfc1734.html

You are right into the one of the formst internet protocals like http
POP3 is one of the intenet standard email delivery protocals, and email client programs like outlook express usually remove the user from having to know how the client server work together, the above link is to the RFC protocal itself which explains what the "+" means in the POP3 language.

This link is a little more english.
http://developer.netscape.com/docs/manuals/messaging/msdkj/prorj.htm#1034372

you can test it out yourself on your own email server, using telnet
from start-run type telnet my_serverid {space} 110 [this forces telnet to communiate on port 110 the standard pop3 communication port

you should see some welcome message from your pop3 email server.
type user {space} then your user id
you should get back a '+OK' (note the '+' its a positive response from the email server.
then if you want to go further type this
pass [space} your_email_password
once again you should get back a '+OK'
So far so good.
now if you want a list of messages in your pop3 email box type'list'
you get a listing of email messages on your server. and so on.

This is what a pop3 email client does for you, , communites with the server, and the waiting for a '+' comment in the code you posted, is basically waiting for a positive response from the email server,before sending the next request.

I hope some of this helps.
Bob Lee





>>>>What does it mean
>>>?
>>>>if lcReturn # "+"
>>>>
>>>>using wwPop3.GetMessage()...?
>>>
>>>I'm not using the wwPop3 class, but the '#' operator means 'not equal' in VFP.
>>>
>>>
>>>>if lcReturn # "+"
>>>*&
>>>*&  is same as
>>>*&
>>>IF NOT lcReturn = "+"
>>>
>>>
>>>
>>>HTH
>>>
>>>Wan
>>
>>Yes, but what does it mean if the wwPop3.GetMessage() return value does not contain "+" ??
>
>
>I am not using wwPop3, so I don't know the detail about the GetMessage(). Is wwPop3 a freeware from WestWind? Or is it possible for you to paste a portion of the code here or email it to me so I can look into it?
>
>
>Wan
In the beginning, there was a command prompt, and all was well.
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