Bug#1004740: exim4: SIGSEGV (maybe attempt to write to immutable memory) when sending a mail; message frozen

[Gedalya]

On 5/10/22 21:11, Gedalya wrote:
> It seems like exim crashes when attempting to connect to the second remote server, after the first one deferred the message. Once again, this only happens in a queue runner.

I forgot to mention: google seems to be closing the connection immediately after the deferral, causing the logged TLS error lines, and this seems to be a necessary component for this issue. I don't know how to reproduce this behavior with another exim, the "drop" ACL verb is the closest but that only works with a 5xx response but then the other side won't continue trying to deliver. I haven't found a way to forcibly close the connection after a deferral.