==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.6.3 MARIADB edition
- Deployed with iRedMail Easy or the downloadable installer? NO
- Linux/BSD distribution name and version: Ubuntu
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
Jun 20 20:11:02 mail postfix/submission/smtpd[18273]: connect from localhost[127.0.0.1]
Jun 20 20:11:02 mail postfix/submission/smtpd[18273]: Anonymous TLS connection established from localhost[127.0.0.1]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256
Jun 20 20:11:03 mail postfix/submission/smtpd[18273]: 4Qm2S66Hsjz3t4t: client=localhost[127.0.0.1], sasl_method=LOGIN, sasl_username=postmaster@domain.com
Jun 20 20:11:03 mail postfix/cleanup[18276]: 4Qm2S66Hsjz3t4t: message-id=<60aa59375c60b2bce3119943de511b41@domain.com >
Jun 20 20:11:03 mail postfix/qmgr[15264]: 4Qm2S66Hsjz3t4t: from=<postmaster@domain.com >, size=556, nrcpt=1 (queue active)
Jun 20 20:11:03 mail roundcube: <gguib9je> User postmaster@domain.com  [192.168.4.12]; Message <60aa59375c60b2bce3119943de511b41@domain.com > for test@otherdomain.com ; 250: 2.0.0 Ok: queued as 4Qm2S66Hsjz3t4t
Jun 20 20:11:03 mail postfix/submission/smtpd[18273]: disconnect from localhost[127.0.0.1] ehlo=2 starttls=1 auth=1 mail=1 rcpt=1 data=1 quit=1 commands=8
Jun 20 20:11:03 mail postfix/amavis/smtp[18277]: 4Qm2S66Hsjz3t4t: to=<test@otherdomain.com >, relay=127.0.0.1[127.0.0.1]:10026, delay=0.19, delays=0.18/0.01/0/0, dsn=4.7.4, status=deferred (TLS is required, but was not offered by host 127.0.0.1[127.0.0.1])

because of antispam.br rules, i can't send mail to port 25, just 587
i trying to figure out how to do this, and i think i found it, but when i try to send email now this erros happens "TLS is required, but was not offered by host 127.0.0.1[127.0.0.1]"