Outllook replacement (long)

Benjamin Fisher dentariz at linuxmail.org
Wed Feb 5 20:05:25 CST 2003


Perhaps I was not clear enough.  SMTP/POP/IMAP - none of this do I have direct access to.  
Everything is thrown through port 80 at the proxy server - that is, in order to gain access to an 
FTP site, one must use a http://x.x.x.x:80/ proxy server.  What is restricted?  It would be faster 
to tell you what is not: HTTP, HTTPS, FTP down.  That is all.  And yes, it goes through port 80 via 
the MS Proxy.  I know what the protocols do as a standard, but trying to figure out what they're 
doing as they are being used on this network is whole other story.  Like I said, I know that all of 
this is mostly a proxy issue.  ISP's SMTP Server?  Nope, can't get to the outside, as I said.  I 
can, of course, telnet to the internal servers, but not to their external identities.  Nor anything 
on the outside.  As I said, for everything that's on the inside, if it doesn't go through the proxy 
server on port 80, it doesn't go through at all.  Most of this I know.  I just wish I knew what was 
happeni!
ng between everything that won't allow me to correctly send mail, or receive it via IMAP.

At any rate, thanks for the input.

Ben

Re: Most of these issues do not seem to be server issues.
Re: 
Re: POP.... Receiving (i.e. getting your mail?) That is what POP is for. 
Re: IMAP & POP may have sending hidden somewhere in there protocol, but SMTP 
Re: is designed for sending. Not accessing POP from outside is the 
Re: firewall/proxy issue. Your admins way of saying he is security conscious.
Re: 
Re: SMTP.... Many places just disable outside SMTP relay access try using 
Re: your ISP's SMTP server. His way of dealing with spam security. This may 
Re: not be a proxy issue try telneting to port 25. When you telnet double 
Re: check the MX host you should be going to.
Re: 
Re: IMAP.... I don't know what this issue is. I wish more admins supported 
Re: it since it is much better than POP. I can't say it is a proxy issue 
Re: since you say it just does not work at all after connecting, but it is 
Re: connecting? Try telnet on this one as well.
Re: 
Re: FTP.... Proxy issue? Perhaps it is not ftp, but upload & download via http.
Re: 
Re: As for security, some of the non-http things are probably more secure 
Re: given all the scripts in IIS's http, but then he is using MS to begin 
Re: with so there is no security mind really in him.
Re: 
Re: When you say everything is being squashed through port 80 that is when 
Re: you try to connect to the outside world, and who knows what things 
Re: (sites/protocals/speeds) are restricted.
Re: 
Re: Telneting will often tell you the versions and settings. Read the RFC's 
Re: -- don't know if MS will tell you the settings.
Re: 
Re: Benjamin Fisher wrote:
Re: 
Re: >Well, they DO have the ability to speak pop3 and imap and smtp.  In a weird and stupid way, 
more than likely.  I can't really tell if it's the server or some sort of configuration error.  
However, they're not talkin'.
Re: >
Re: >POP3 is out of the question (as well as anything besides HTTP, HTTPS, FTP - and 
FTP-in/FTP-down only.  and everything is stuffed through port 80).  It's disabled, because it's 
"too insecure", according to the admin.
Re: >
Re: >I can't really tell what the exact problem is, though.  IMAP settings for the receiving end 
don't work.  I can't tell what sort of authentication type it's using if IMAP is enabled/configured 
properly.  It certainly doesn't support anything currently in Evolution besides "Password".  If it 
supports anything.  The POP settings for receiving somehow works (the proxy is probably set up to 
not allow pop to the outside).
Re: >
Re: >On the sending side, SMTP works so long as it is on the local network.  Outside, it doesn't 
work.  Something weird they're doing between the proxy and mail server, and possible what's 
happening on the outside of the proxy, probably is messing up the actual outgoing SMTP.  Or at 
least that was the half-baked answer I got from the admin.
Re: >
Re: >IMAP probably isn't set up right/in use.  Although the port is open, I know.  It must be one 
of 100 that are.  And however they're handling IMAP.  Who knows.
Re: >
Re: >My best guess is that things are set up weirdly, the servers are just made crappy (what I've 
come to expect from MS), and/or the authentication type it's using via SMTP (and/or POP3,IMAP) 
isn't working right with their exchange server.
Re: >
Re: >I don't know much about Microsoft server software.  Or really any other MS stuff.  Because I 
don't use it, and never have really.  The admin. is an NT4 MCSE, however, that's pretty much what 
is in use across the board here: NT4 servers.  Very few, if anything, is on Win2K.  Except the lab 
I work at (my supervisor - and the computer science chairman - is a marketing/MS-brainwashee, so 
I'm not allowed to use anything but windows crap):  we use Win2K there for one domain, NT4 for 
another just so people can learn about both.  Who knows.
Re: >
Re: >Conclusion: Weird SMTP authentication type is in use on their end, or Evolution doesn't 
support/doesn't support well enough what they're using.  Therefore, SMTP works inside when 
authentication is turned off, but doesn't work on the outside.  IMAP isn't set up right, or if it 
is, Evolution doesn't support the auth. type needed.  POP3, again, works on the inside, like 
everything else, but it isn't allowed on the outside.
Re: >
Re: >Ben
Re: >
Re: >  
Re: >
Re: --
Re: Patrick Miller 
Re: 
Re: 
Re: 

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