Re: [Exim] Desperation: Connection Reset by Peer

> Is Path MTU discovery working for you? Have you got some nasty icmp
> filtering in the way that might be preventing the MTU from being
> negotiated? Is your MTU 1500, or lower?
1500 - but I've tried all sorts of values - no go.
No filtering.
> Gigabit Ethernet allows MTU's up to 9000 bytes, and some setups allow
> beyond this (eg 15000 bytes for most Intel NICs). Is your system trying
> to use Jumboframes?
Nope - 1500.

Regards,
Martin