Job exception: hostname "domainname" does not match the server certificate for Jobs:PollMailbox

Hello. I am getting this message when I configure POP3 in my Discourse.
I get this message

Job exception: hostname “rgpdseguridad.com” does not match the server certificate

Every 5 minutes (polling time)

env is

hostname	discourse-beta-ubuntu-s-1vcpu-1gb-ams3-01-app
process_id	741
application_version	b45142ef79b84d821f7f78cbcbfd282228c1dcc2
current_db	default
current_hostname	circulotelecos.com
job	Jobs::PollMailbox
problem_db	default
time	10:29 am
optss

Backtrace is

/usr/local/lib/ruby/2.6.0/openssl/ssl.rb:395:in `post_connection_check'
/usr/local/lib/ruby/2.6.0/net/pop.rb:555:in `do_start'
/usr/local/lib/ruby/2.6.0/net/pop.rb:531:in `start'
/var/www/discourse/app/jobs/scheduled/poll_mailbox.rb:39:in `poll_pop3'
/var/www/discourse/app/jobs/scheduled/poll_mailbox.rb:14:in `execute'
/var/www/discourse/app/jobs/base.rb:232:in `block (2 levels) in perform'
rails_multisite-2.1.1/lib/rails_multisite/connection_management.rb:64:in `with_connection'
/var/www/discourse/app/jobs/base.rb:221:in `block in perform'
/var/www/discourse/app/jobs/base.rb:217:in `each'
/var/www/discourse/app/jobs/base.rb:217:in `perform'
/var/www/discourse/app/jobs/base.rb:279:in `perform'
mini_scheduler-0.12.2/lib/mini_scheduler/manager.rb:86:in `process_queue'
mini_scheduler-0.12.2/lib/mini_scheduler/manager.rb:36:in `block (2 levels) in initialize'

I have seen some topics related with this message in META but no one related with “PollMailbox”
Hope someone can help me to find how to solve it.

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