[MiNT] e-mail problems with Mint

[Peter Slegg <p.slegg@scubadivers.co.uk>]

Hi All,

A few weeks ago Evan looked into my e-mail sending problem with
1.16.x versions.

I have added Evan's e-mail below. I didn't summarise it because
that was bound to confuse things.

I don't have another machine here to check if Mint is sending the
packets but there is no activity on the router LEDs when mails
are stalling.

Is there anything in the config that could lead to a probem like this
with 1.16.x while 1.15.12 works fine ?

I would like to start using 1.16 again, it is faster and more stable
than 1.15.12 but since I can't e-mail (or format floppies) with it
I am stuck with the old version.

Regards,

Peter


------     Forwarded message.     ------

It was as I expected - the MiNT machine starts sending the DATA
portion of an email and the SMTP server stops responding.

It looks to me like the SMTP server just never gets the packets.  Everthing in
the TCP and IP layers looks just fine, so I'm assuming this is a
physical layer problem.

My guess is that the network card driver isn't sending the packets.

You'd need another machine as a gateway or bridge between the MiNT machine and
the netgear running tcpdump so you can tell if the packets are leaving the
machine.

It does look like there is a bug in MiNTs re-transmission - the
packets shouldn't be getting 1 byte bigger each retransmit, at least I don't
think so, but the other end should still be sending an ACK if it got
the packet and it doesn't.

The fact that your earlier tcpdump showed a response after the connection
timed out makes me think that the network driver either isn't
sending those packets to the wire, or it doesn't let the kernel know when it
receives them.

-- Evan