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Re: [partly OT]: in-between ISPs



Hi!
You probably have the MTU problem I resently described in a post here.
go to :
http://damyen.technion.ac.il/~dani/adsl-mtu.txt
and read. Send it to your ISP's and tell them to go get some TCP/IP
education. Till then, reduce your ethernet MTU to 1460 bytes, or less it
it does not help.
Dani

On 6 Aug 2001, Oleg Goldshmidt wrote:

>
> Hi,
>
> I despaired of getting any useful help from Netvision support on this
> matter. Can anyone (Netvision or Barak personnel maybe?) shed the
> light on the following effect:
>
> I want to fetch my mail from Netvision while at the office, connected
> to Barak via ADSL. I have a RH7.1 computer, normally running
> fetchmail-5.7.4-4. I also tried downgrading to fetchmail-5.5.0 (from
> RH7.0), and - G-d forbid, Outlook on Windows 2k.
>
> Regardless of the POP3 client, the result - not always but most of the
> time - is that I get authenticated (also confirmed by telnetting to
> port 110 of the Netvision server), get the STAT and the LIST of
> messages sitting on the server, and then get stuck on the first
> retrieval util the connection times out. A typical fetchmail -v -v
> log is attached below.
>
> >From time to time it works, as I said, but most of the time I get
> stuck, always on retrieval of the first unread message (I use "keep",
> but it is the same after cleaning the mailbox, or when using
> "fetchall"). It is not a particular message that gets stuck, either.
>
> There is no problem on my home computer (RH7.0, fetchmail-5.5.0), with
> a dial-up connection to Netvision.
>
> I tried downgrading fetchmail to 5.5.0, I tried Outlook (desperation)
> - didn't help.
>
> I managed to convince numerous Netvision support people that there was
> nothing wrong with my client setup. The latest statement from them -
> this morning - was that there was some incompatibility with Barak's
> ADSL. This is indeed the only significant difference that I see
> between my home and office setups, but before I blame Barak, has
> anyone seen anything like this? Any ideas?
>
> --
> Oleg Goldshmidt | ogoldshmidt@NOSPAM.computer.org
> "I'd rather write programs to write programs than write programs."
>
> $ fetchmail -v -v
> fetchmail: 5.7.4 querying mail.netvision.net.il (protocol POP3) at Mon 06 Aug 2001 10:07:02 AM IDT
> fetchmail: POP3< +OK POP3 [194.90.1.105] v7.60 server ready
> fetchmail: POP3> USER ogoldsh
> fetchmail: POP3< +OK User name accepted, password please
> fetchmail: POP3> PASS *
> fetchmail: POP3< +OK Mailbox open, 41 messages
> fetchmail: selecting or re-polling default folder
> fetchmail: POP3> STAT
> fetchmail: POP3< +OK 41 163661
> fetchmail: POP3> LAST
> fetchmail: POP3< +OK 0
> 41 messages for ogoldsh at mail.netvision.net.il (163661 octets).
> fetchmail: POP3> LIST
> fetchmail: POP3< +OK Mailbox scan listing follows
> fetchmail: POP3< 1 4255
> fetchmail: POP3< 2 3499
>
> <lengthy irrelevant listing snipped>
>
> fetchmail: POP3< 40 3225
> fetchmail: POP3< 41 2901
> fetchmail: POP3< .
> fetchmail: POP3> RETR 1
> fetchmail: timeout after 300 seconds waiting for server mail.netvision.net.il.
> fetchmail: client/server synchronization error while fetching from mail.netvision.net.il
> fetchmail: Query status=7 (ERROR)
>
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