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I use Truenas core 12.0 U7 (freebsd 12.2)

And gitlab-ce onto freebsd jail, reverse proxy on pfsense haproxy.

and i set on gmail smtp on smtp_settings.rb use 587port…

but when I send email notification. Sidekiq log error SSL_CONNECT.

{“severity”:“INFO”,“time”:“2022-01-30T09:27:12.464Z”,“retry”:3,“queue”:“mailers”,“class”:“ActionMailer::MailDeliveryJob”,“args”:["[FILTERED]"],“jid”:“70dd17d967f21541a2495ad7”,“created_at”:“2022-01-30T09:27:12.
455Z”,“meta.user”:“artoargue”,“meta.caller_id”:“Profiles::EmailsController#resend_confirmation_instructions”,“meta.remote_ip”:“192.168.1.187”,“meta.feature_category”:“users”,“meta.client_id”:“user/2”,“correlati
on_id”:“01FTN4YM7VZFMAWG2T5PAHX2RH”,“worker_data_consistency”:“always”,“idempotency_key”:“resque:gitlab:duplicate:mailers:96e06617f024e2c47ed1424ad74bc8d0d6914c67d25c1373968e2b9edd380536”,“size_limiter”:“valida
ted”,“enqueued_at”:“2022-01-30T09:27:12.463Z”,“job_size_bytes”:465,“pid”:39504,“message”:“ActionMailer::MailDeliveryJob JID-70dd17d967f21541a2495ad7: start”,“job_status”:“start”,“scheduling_latency_s”:0.00134}
{“severity”:“INFO”,“time”:“2022-01-30T09:27:12.479Z”,“message”:" Rendered layout layouts/mailer/devise.html.haml (Duration: 8.0ms | Allocations: 1542)"}
{“severity”:“INFO”,“time”:“2022-01-30T09:27:13.792Z”,“message”:“Delivered mail 61f659f0796af_9a504218044160@gitlab-ce.mail (1295.8ms)”}
{“severity”:“WARN”,“time”:“2022-01-30T09:27:13.794Z”,“retry”:3,“queue”:“mailers”,“class”:“ActionMailer::MailDeliveryJob”,“args”:["[FILTERED]"],“jid”:“70dd17d967f21541a2495ad7”,“created_at”:“2022-01-30T09:27:12.
455Z”,“meta.user”:“artoargue”,“meta.caller_id”:“Profiles::EmailsController#resend_confirmation_instructions”,“meta.remote_ip”:“192.168.1.187”,“meta.feature_category”:“users”,“meta.client_id”:“user/2”,“correlati
on_id”:“01FTN4YM7VZFMAWG2T5PAHX2RH”,“worker_data_consistency”:“always”,“idempotency_key”:“resque:gitlab:duplicate:mailers:96e06617f024e2c47ed1424ad74bc8d0d6914c67d25c1373968e2b9edd380536”,“size_limiter”:“valida
ted”,“enqueued_at”:“2022-01-30T09:27:12.463Z”,“job_size_bytes”:465,“pid”:39504,“message”:“ActionMailer::MailDeliveryJob JID-70dd17d967f21541a2495ad7: fail: 1.329082 sec”,“job_status”:“fail”,“scheduling_latency_
s”:0.00134,“redis_calls”:1,“redis_duration_s”:0.000234,“redis_read_bytes”:9,“redis_write_bytes”:290,“redis_cache_calls”:1,“redis_cache_duration_s”:0.000234,“redis_cache_write_bytes”:41,“redis_queues_read_bytes”
:9,“redis_queues_write_bytes”:249,“db_count”:3,“db_write_count”:0,“db_cached_count”:0,“db_replica_count”:0,“db_primary_count”:3,“db_replica_cached_count”:0,“db_primary_cached_count”:0,“db_replica_wal_count”:0,"
db_primary_wal_count":0,“db_replica_wal_cached_count”:0,“db_primary_wal_cached_count”:0,“db_replica_duration_s”:0.0,“db_primary_duration_s”:0.005,“cpu_s”:0.031886,“duration_s”:1.329082,“completed_at”:“2022-01-3
0T09:27:13.793Z”,“load_balancing_strategy”:“primary”,“error_message”:“SSL_connect returned=1 errno=0 state=error: certificate verify failed (unable to get local issuer certificate)”,“error_class”:“OpenSSL::SSL:
:SSLError”,“error_backtrace”:[“lib/gitlab/database/load_balancing/sidekiq_server_middleware.rb:26:in call'","lib/gitlab/sidekiq_middleware/duplicate_jobs/strategies/until_executing.rb:16:in perform’”,“lib/git
lab/sidekiq_middleware/duplicate_jobs/duplicate_job.rb:58:in perform'","lib/gitlab/sidekiq_middleware/duplicate_jobs/server.rb:8:in call’”,“lib/gitlab/sidekiq_middleware/worker_context.rb:9:in wrap_in_option al_context'","lib/gitlab/sidekiq_middleware/worker_context/server.rb:17:in block in call’”,“lib/gitlab/application_context.rb:74:in block in use'","lib/gitlab/application_context.rb:74:in use’”,“lib/gitlab/a
pplication_context.rb:27:in with_context'","lib/gitlab/sidekiq_middleware/worker_context/server.rb:15:in call’”,“lib/gitlab/sidekiq_status/server_middleware.rb:7:in call'","lib/gitlab/sidekiq_versioning/midd leware.rb:9:in call’”,“lib/gitlab/sidekiq_middleware/admin_mode/server.rb:14:in call'","lib/gitlab/sidekiq_middleware/instrumentation_logger.rb:9:in call’”,“lib/gitlab/sidekiq_middleware/batch_loader.rb:7:in
call'","lib/gitlab/sidekiq_middleware/extra_done_log_metadata.rb:7:in call’”,“lib/gitlab/sidekiq_middleware/request_store_middleware.rb:10:in block in call'","lib/gitlab/with_request_store.rb:17:in enablin
g_request_store’”,“lib/gitlab/with_request_store.rb:10:in with_request_store'","lib/gitlab/sidekiq_middleware/request_store_middleware.rb:9:in call’”,“lib/gitlab/sidekiq_middleware/server_metrics.rb:66:in bl ock in call'","lib/gitlab/sidekiq_middleware/server_metrics.rb:89:in block in instrument’”,“lib/gitlab/metrics/background_transaction.rb:33:in run'","lib/gitlab/sidekiq_middleware/server_metrics.rb:89:in ins
trument’”,“lib/gitlab/sidekiq_middleware/server_metrics.rb:65:in call'","lib/gitlab/sidekiq_middleware/monitor.rb:10:in block in call’”,“lib/gitlab/sidekiq_daemon/monitor.rb:49:in within_job'","lib/gitlab/si dekiq_middleware/monitor.rb:9:in call’”,“lib/gitlab/sidekiq_middleware/size_limiter/server.rb:13:in call'","lib/gitlab/sidekiq_logging/structured_logger.rb:21:in call’”],“db_duration_s”:0.00431}

like these…

is anyone know solution to this problem?

please format your posting in a way that it is human readable.
I also use the community version and i am also not able to send email.