On Thu, Jun 27, 2019 at 04:44:33PM +0100, Richard Jones via Exim-users wrote:
> On Jun 27, Niels Dettenbach wrote > > Relaying to GMail from "unknown third party" SMTP servers could be very > > limited / "downslowed" by different "temp avail" strategies. Google offers > > a > > "postmaster tool" which seem to shift reputation of "registered" SMTP > > Servers: > > https://www.gmail.com/postmaster/ > > > > If i remember correct, i got (as a postmaster of some larger organisation > > with few hundreds of ("mass mailed") gmail recipients by some days) a > > message > > from Google to "visit" their postmaster tools and register our mail > > systems. > > Since then (few hours later) any relaying was not delayed anymore. > > Good to know, thanks. I've signed up (they require an additional DNS TXT > record for validation which is enough for me to do). I guess now I'll > sit tight. It doesn't explain why the GNU TLS client succeeds though. It does not explain your reported symptoms because it is a general hand-waving answer that does not apply to your situation. The problem you reported is a bug in Exim with recent GnuTLS versions when doing TLS 1.3. You need a patched Exim, OpenSSL, or need to disable TLS 1.3, which IIRC is enough to avoid that particular issue. -- Viktor. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
