add null check when fetching emails (#7123) #269

Job	Run time
build_test_release_tag / lint / pre-commit	15s
build_test_release_tag / seed_maven_cache / seed_cache	25s
build_test_release_tag / install_maven_dependencies / install_deps	4m 30s
build_test_release_tag / unit_tests_publish / tst_amq / maven_test	38s
build_test_release_tag / unit_tests_publish / tst_api / maven_test	2m 36s
build_test_release_tag / unit_tests_publish / tst_api_common / maven_test	1m 14s
build_test_release_tag / unit_tests_publish / tst_core / maven_test	4m 47s
build_test_release_tag / unit_tests_publish / tst_iapi / maven_test	1m 18s
build_test_release_tag / unit_tests_publish / tst_ml / maven_test	45s
build_test_release_tag / unit_tests_publish / tst_pubweb / maven_test	1m 19s
build_test_release_tag / unit_tests_publish / tst_persistence / maven_test	1m 48s
build_test_release_tag / unit_tests_publish / tst_sched / maven_test	56s
build_test_release_tag / unit_tests_publish / tst_web / maven_test	1m 46s
build_test_release_tag / unit_tests_publish / tst_utils / maven_test	38s
build_test_release_tag / bld_all / bld_iapi / bld_maven	1m 19s
build_test_release_tag / bld_all / bld_ml / bld_maven	1m 14s
build_test_release_tag / bld_all / bld_api / bld_maven	1m 41s
build_test_release_tag / bld_all / bld_amq / bld_maven	1m 12s
build_test_release_tag / bld_all / bld_pubweb / bld_maven	1m 43s
build_test_release_tag / bld_all / bld_sched / bld_maven	1m 18s
build_test_release_tag / bld_all / bld_web / bld_maven	2m 51s
build_test_release_tag / rel_tag / rel_tag	27s
	34m 40s

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