use self-hosted IMAP server for testing

[tomholub]

@DenBond7 can you please copy the whole test server setup from Android repo, and copy all IMAP test resources here as well? Then we can start writing test cases against it on iOS.

[tomholub]

The goal of this issue is that it will start and run in each Semaphore CI run like on Android, but remain unused.

Then @Kharchevskyi will switch iOS test to start using it in another PR.

[tomholub]

[DenBond7]

@Kharchevskyi Please feel free to ask me directly via skype. I will show you what I have. It'll be much faster.

[tomholub]

Actually I prefer to keep the communication here. It's very important for future reference. Communication in skype gets lost.

[DenBond7]

https://github.com/FlowCrypt/flowcrypt-android/blob/4d8f1ded212ccaff5f6f0aef7023038354c37c9d/FlowCrypt/src/androidTest/java/com/flowcrypt/email/ui/activity/MessageDetailsActivityTest.kt#L184

[tomholub]

@DenBond7 Regarding the source for the docker image that we use for IMAP/SMTP - where exactly is the source now? Is it on Android repo? Could you share a link?

[DenBond7]

We store the email server code here
https://github.com/FlowCrypt/flowcrypt-android/tree/master/docker-mailserver

[tomholub]

Understood - is it also on dockerhub somewhere? Or you run docker just from that directory, when running tests on Android?

[DenBond7]

https://hub.docker.com/r/flowcrypt/flowcrypt-email-server

We've created an organization for that

[tomholub]

Great. In that case, for now, you can leave the sources in Android repo. Then on iOS, you can just use the dockerhub directly, without need for android repo - correct?

[tomholub]

Then moving https://github.com/FlowCrypt/flowcrypt-android/tree/master/docker-mailserver to a separate github repo can happen sometime in the future