==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.6
- Linux/BSD distribution name and version:  CentOS 7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro?  no
- Related log if you're reporting an issue:
====

Hello all,

I am having some issues using Mailgun as my external smtp server for all accounts.

iRedMail works perfectly out of the box using the local server for sending all mail.  So no issues with that.

But as soon as I add these lines to my main.cf files, I get relay denied from Mailgun.

relayhost = [smtp.mailgun.org]:25
smtpd_sasl_auth_enable = yes
smtp_sasl_password_maps = static:XXXXXX:XXXXXXX
smtp_sasl_security_options = noanonymous
smtpd_tls_auth_only = yes

Mailgun has said that the sasl password is not being sent so that is why I am getting relaying denied.  No authentication.

My log looks like this.

Apr 14 14:59:44 testing postfix/smtp[24152]: B3F258800512: to=<michael@xxxxxxx.com>, relay=smtp.mailgun.org[54.149.68.173]:25, delay=0.55, delays=0.01/0.03/0.4/0.12, dsn=5.7.1, status=bounced (host smtp.mailgun.org[54.149.68.173] said: 550 5.7.1 Relaying denied (in reply to RCPT TO command))

I have also tried all ports.

It seems as if iRedMail has a conflict with sasl_password_maps. 

Any help?

Thanks.