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Topic: Thunderbird: can't send mail: Domain not found.

==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.5-1
- Linux/BSD distribution name and version: Debian 8 (jessie)
- 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:
====

Hi,

When sending e-mail through Thunderbird, shows the following message:

An error occurred while sending mail. The mail server responded:
4.1.2 <... @ hotmail.com>: Recipient address rejected: Domain not found.
  Please check the message recipient "... @ hotmail.com" and try again.

Other domains also give the same error randomly. Must insist several times until you send. This error occurs only when sending the Thunderbird, sending via webmail not.

What can be that?

Thank you.

----

Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.

2

Re: Thunderbird: can't send mail: Domain not found.

Please make sure your iRedMail server uses a working DNS server in /etc/resolv.conf and /var/spool/postfix/etc/resolv.conf.

3

Re: Thunderbird: can't send mail: Domain not found.

That's it!

Thanks a lot!