TestWhisperMailboxTestSuite/TestSyncBetweenTwoMailServers is flaky

[dshulyak]

Problem

TestWhisperMailboxTestSuite/TestSyncBetweenTwoMailServers constantly fails on jenkins when tests are executed with race flag.

Examples: https://ci.status.im/blue/organizations/jenkins/status-go%2Fprs%2Ftests/detail/PR-1404/2/pipeline

[2019-03-06T15:39:17.899Z] --- FAIL: TestWhisperMailboxTestSuite/TestSyncBetweenTwoMailServers (10.15s)

[2019-03-06T15:39:17.899Z] <autogenerated>:1:

Error Trace: whisper_mailbox_test.go:555

[2019-03-06T15:39:17.899Z]
Error: Received unexpected error:

[2019-03-06T15:39:17.899Z]
context deadline exceeded

https://ci.status.im/blue/organizations/jenkins/status-go%2Fprs%2Ftests/detail/PR-1407/1/pipeline/91

[status-github-bot[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.