LOL Thanks. I just wanted to be sure that It wasn't a configuration error of my server or that there wasn't a security flaw somewhere.
Thanks again Ale Il 18 gennaio 2021 18:35:16 CET, Jeremy Harris via Exim-users <[email protected]> ha scritto: >On 18/01/2021 17:14, Ale via Exim-users wrote: >> I tried, among the debug output I see this >> >> https://pad.riseup.net/p/cxR_DZlHJxX21xm2HxdO >> >> Honestly I don't understand the cause. > >20212 SMTP<< QUIT > >They sent a QUIT command > >20212 SMTP>> 221 mx1.mydomain.com closing connection > >We (are about to try to) send them the response to >that command, saying it was accepted > >20212 tls_write(0x55cfb17b27f0, 43) >20212 gnutls_record_send(SSL, 0x55cfb17b27f0, 43) >20212 GnuTLS<2>: WRITE: -1 returned from 0x6, errno: 104 >20212 GnuTLS<3>: ASSERT: ../../lib/buffers.c[_gnutls_io_write_flush]:722 >20212 GnuTLS<3>: ASSERT: ../../lib/record.c[_gnutls_send_tlen_int]:574 >20212 outbytes=-110 >20212 tls_write: gnutls_record_send err > >... to do which, we called the GnuTLS "send" routine. It returned an error >code saying that the TCP connection had already been closed. > >20212 LOG: MAIN >20212 TLS error on connection from >mail-eopbgr70088.outbound.protection.outlook.com >(EUR04-HE1-obe.outbound.protection.outlook.com) [40.107.7.88] (send): The TLS >connection was non-properly terminated. > >We logged that error. > > > >Basically, Outlook fires off the QUIT command and rudely terminates the TCP >connection without >waiting for an SMTP-level response, or even doing a TLS-level shutdown. > >There is zero chance of getting Microsoft to fix that, being an 800lb gorilla. >All we can do is point and laugh... and implement a workaround. It's in 4.94 >(from >commit f1e494e002). >-- >Cheers, > Jeremy > >-- >## 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/ -- Inviato dal mio dispositivo Android con K-9 Mail. Perdonate la brevità . -- ## 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/
