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#3421 changes only the Rust implementation, but keeps C API intact. I have an idea to break C API and make construction of event channel explicit, so library user will...

I haven't added compatibility macros/wrappers, the only code that needs to be changed is Android and iOS clients. Node module is already changed in this PR.

I added defines for backwards compatibility. Python does not depend on them, but they will allow to build Android/iOS without changes.

Just tried it now, Delta Chat on Android is completely freezed for some time and then says to give a valid email address. My DNS also does not give MX...

If I query via 8.8.8.8 or 1.1.1.1, it returns MX record: ``` $ dig MX @8.8.8.8 tt $ dig MX @1.1.1.1 tt ``` Delta Chat core uses 8.8.8.8 too.

The solution is probably not to query for MX record if a valid address with `@` is not entered.

I changed strings "... done by me" to "You did ...". Other messengers say "you" in this case too. Chat looking the same on all devices may be a good...

This is ready for review.

@r10s I updated PR according to your review and regenerated node constants.

@r10s Fixed