[exim-dev] [Bug 1885] Mail heisenbounces. Probable cause: IPv6 and/or lack of encryption.

https://bugs.exim.org/show_bug.cgi?id=1885 --- Comment #16 from Thaddeus H. Black --- Created attachment 928 --> https://bugs.exim.org/attachment.cgi?id=928&action=edit Client's log of an actual unauthorized relay. -- You are receiving this mail because: You are on the CC list for the bug. --

[exim-dev] [Bug 1885] Mail heisenbounces. Probable cause: IPv6 and/or lack of encryption.

https://bugs.exim.org/show_bug.cgi?id=1885 --- Comment #17 from Thaddeus H. Black --- Created attachment 929 --> https://bugs.exim.org/attachment.cgi?id=929&action=edit Client's log of an actual authorized relay. -- You are receiving this mail because: You are on the CC list for the bug. --

[exim-dev] [Bug 1885] Mail heisenbounces. Probable cause: IPv6 and/or lack of encryption.

https://bugs.exim.org/show_bug.cgi?id=1885 --- Comment #18 from Thaddeus H. Black --- Created attachment 930 --> https://bugs.exim.org/attachment.cgi?id=930&action=edit Server's log of two actual relays -- unauthorized, then authorized. -- You are receiving this mail because: You are on the C

[exim-dev] [Bug 1885] Mail heisenbounces. Probable cause: IPv6 and/or lack of encryption.

https://bugs.exim.org/show_bug.cgi?id=1885 --- Comment #19 from Thaddeus H. Black --- Jeremy Harris suggested: > The apparent randomness and/or first-try-only behaviour might be affected by history maintained at either end, notably in the hints databases. For test purposes I suggest wiping them

[exim-dev] [Bug 1885] Mail heisenbounces. Probable cause: IPv6 and/or lack of encryption.

https://bugs.exim.org/show_bug.cgi?id=1885 --- Comment #20 from Thaddeus H. Black --- And now I see that this issue is mentioned in a Debian man page, exim4-config_files(5). Apparently, it is a real, longstanding problem without a known solution. The relevant excerpt from the man page follows.

[exim-dev] [Bug 1835] Use after free of FILE *smtp_in, *smtp_out in server process after failed GnuTLS STARTTLS

https://bugs.exim.org/show_bug.cgi?id=1835 Jeremy Harris changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[exim-dev] [Bug 1902] New: generated DH parameters for Openssl

https://bugs.exim.org/show_bug.cgi?id=1902 Bug ID: 1902 Summary: generated DH parameters for Openssl Product: Exim Version: 4.87 Hardware: All OS: All Status: NEW Severity: wishlist Priority: med

[exim-dev] [Bug 1902] generated DH parameters for Openssl

https://bugs.exim.org/show_bug.cgi?id=1902 --- Comment #1 from Phil Pennock --- The older standards primes are subject to precomputation-aided attacks. The whole point of the ones in the appendix of RFC 7919 is that they're "nothing up my sleeve" values, intended to not be subject to precomputat