Topic: Unable to send email to Gmail accounts
==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.6.0 PGSQL edition
- Deployed with iRedMail Easy or the downloadable installer? downloadable installer
- Linux/BSD distribution name and version: Ubuntu "20.04.4 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): PGSQL
- Web server (Apache or Nginx): NGINX
- Manage mail accounts with iRedAdmin-Pro? yes
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
Apr 3 16:02:27 webmail postfix/smtp[3291605]: 4Pqjzk10s8z8B5b: to=<xxxxxx@gmail.com>, relay=gmail-smtp-in.l.google.com[172.217.194.26]:25, delay=1.6, delays=0.01/0.01/0.57/1.1, dsn=5.0.0, status=bounced (host gmail-smtp-in.l.google.com[172.217.194.26] said: 550 Requested action not taken: mailbox unavailable (in reply to end of DATA command))
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