Hi all, I get errors when sending a verification email. I try mailjet and mailslurper but get the same error:

"msg":"Message was abandoned because it did not deliver after 6 attempts"

my settings

courier:
  smtp:
    connection_uri: <smtp://md-delete-mailslurper-1:1025/?skip_ssl_verify=true>

mailslurper log

2025-05-29 13:38:29 time="2025-05-29T06:38:29Z" level=info msg="Worker 1 queued to handle connections from 172.26.0.6:44828" who="SMTP Server Pool"
2025-05-29 13:38:39 time="2025-05-29T06:38:39Z" level=info msg="Connection closed" connection="172.26.0.6:44828" who="Connection Manager"
2025-05-29 13:38:39 time="2025-05-29T06:38:39Z" level=info msg="Connection closed" connection="172.26.0.6:44828" who="Connection Manager"
2025-05-29 13:38:40 time="2025-05-29T06:38:40Z" level=info msg="Worker 2 queued to handle connections from 172.26.0.6:48992" who="SMTP Server Pool"
2025-05-29 13:38:40 time="2025-05-29T06:38:40Z" level=info msg="Connection closed" connection="172.26.0.6:44828" who="Connection Manager"
2025-05-29 13:38:50 time="2025-05-29T06:38:50Z" level=info msg="Connection closed" connection="172.26.0.6:48992" who="Connection Manager"
2025-05-29 13:38:51 time="2025-05-29T06:38:51Z" level=info msg="Worker 3 queued to handle connections from 172.26.0.6:40958" who="SMTP Server Pool"
2025-05-29 13:38:51 time="2025-05-29T06:38:51Z" level=info msg="Connection closed" connection="172.26.0.6:44828" who="Connection Manager"
2025-05-29 13:39:01 time="2025-05-29T06:39:01Z" level=info msg="Connection closed" connection="172.26.0.6:40958" who="Connection Manager"
2025-05-29 13:39:02 time="2025-05-29T06:39:02Z" level=info msg="Worker 4 queued to handle connections from 172.26.0.6:39904" who="SMTP Server Pool"
2025-05-29 13:39:02 time="2025-05-29T06:39:02Z" level=info msg="Connection closed" connection="172.26.0.6:48992" who="Connection Manager"
2025-05-29 13:39:10 time="2025-05-29T06:39:10Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:12 time="2025-05-29T06:39:12Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:12 time="2025-05-29T06:39:12Z" level=info msg="Connection closed" connection="172.26.0.6:39904" who="Connection Manager"
2025-05-29 13:39:13 time="2025-05-29T06:39:13Z" level=info msg="Worker 5 queued to handle connections from 172.26.0.6:48516" who="SMTP Server Pool"
2025-05-29 13:39:13 time="2025-05-29T06:39:13Z" level=info msg="Connection closed" connection="172.26.0.6:44828" who="Connection Manager"
2025-05-29 13:39:15 time="2025-05-29T06:39:15Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:16 time="2025-05-29T06:39:16Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:16 time="2025-05-29T06:39:16Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:17 time="2025-05-29T06:39:17Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:23 time="2025-05-29T06:39:23Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:23 time="2025-05-29T06:39:23Z" level=info msg="Connection closed" connection="172.26.0.6:48516" who="Connection Manager"
2025-05-29 13:39:24 time="2025-05-29T06:39:24Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:24 time="2025-05-29T06:39:24Z" level=info msg="Mail collection page 1 retrieved" who=ServiceController
2025-05-29 13:39:24 time="2025-05-29T06:39:24Z" level=info msg="Worker 6 queued to handle connections from 172.26.0.6:35324" who="SMTP Server Pool"
2025-05-29 13:39:24 time="2025-05-29T06:39:24Z" level=info msg="Connection closed" connection="172.26.0.6:40958" who="Connection Manager"
2025-05-29 13:39:34 time="2025-05-29T06:39:34Z" level=info msg="Connection closed" connection="172.26.0.6:35324" who="Connection Manager"

I get error

2025-05-29 13:39:34 {"audience":"application","error":{"message":"read tcp 172.26.0.6:35324->172.26.0.3:1025: i/o timeout","stack_trace":"\<http://ngithub.com/ory/kratos/courier.(*SMTPChannel).Dispatch|ngithub.com/ory/kratos/courier.(*SMTPChannel).Dispatch>\n\t/project/courier/smtp_channel.go:110\ngithub.com/ory/kratos/courier.(*courier).DispatchMessage\n\t/project/courier/courier_dispatcher.go:35\ngithub.com/ory/kratos/courier.(*courier).DispatchQueue\n\t/project/courier/courier_dispatcher.go:82\ngithub.com/ory/kratos/courier.(*courier).watchMessages.func1\n\t/project/courier/courier.go:119\ngithub.com/cenkalti/backoff.RetryNotify\n\t/go/pkg/mod/github.com/cenkalti/backoff@v2.2.1+incompatible/retry.go:37\ngithub.com/cenkalti/backoff.Retry\n\t/go/pkg/mod/github.com/cenkalti/backoff@v2.2.1+incompatible/retry.go:24\ngithub.com/ory/kratos/courier.(*courier).watchMessages\n\t/project/courier/courier.go:118\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_arm64.s:1223"},"level":"error","message_from":"<mailto:no-reply@ory.kratos.sh|no-reply@ory.kratos.sh>","message_id":"01de3af9-7c45-4a8e-9d8d-adbbedc50846","message_nid":"d7c395a7-f0f6-4836-9d7c-1fe3cfddbdd6","message_subject":"Please verify your email address","message_template_type":"verification_code_valid","message_type":"email","msg":"Unable to send email using SMTP connection.","service_name":"Ory Kratos","service_version":"v1.3.1","smtp_server":"md-delete-mailslurper-1:1025","smtp_ssl_enabled":false,"time":"2025-05-29T06:39:34.893967048Z"}
2025-05-29 13:39:35 {"audience":"application","level":"warning","message_id":"01de3af9-7c45-4a8e-9d8d-adbbedc50846","message_nid":"d7c395a7-f0f6-4836-9d7c-1fe3cfddbdd6","message_subject":"Please verify your email address","message_template_type":"verification_code_valid","message_type":"email","msg":"Message was abandoned because it did not deliver after 6 attempts","service_name":"Ory Kratos","service_version":"v1.3.1","time":"2025-05-29T06:39:35.90803584Z"}

please guide me how to fix? I see mailslurper is called but maybe with wrong config

do you use the mailslurper of ory? I think yes I moved to marcopas/docker-mailslurper:latest

will try it, but i changed to use mailhog and it worked well