Topic: Outlook Malforms Emails to Internal Domain
==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.0 MARIADB edition
- Deployed with iRedMail Easy or the downloadable installer? downloadable installer
- Linux/BSD distribution name and version: Ubuntu 18.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MariaDB
- 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.
====
Hello. When email is sent using Outlook (O365 v16) within the same domain; from Dan@domain1.com to Matt@domain1.com it tries to send two emails: one to Matthew and one to Lastname.
Jan 17 22:58:31 mx postfix/postscreen[17454]: CONNECT from [127.0.0.1]:60010 to [127.0.0.1]:25
Jan 17 22:58:31 mx postfix/postscreen[17454]: WHITELISTED [127.0.0.1]:60010
Jan 17 22:58:31 mx postfix/smtpd[17455]: connect from mx.domain1.com[127.0.0.1]
Jan 17 22:58:32 mx postfix/smtpd[17455]: NOQUEUE: reject: RCPT from mx.domain1.com[127.0.0.1]: 504 5.5.2 <Matthew>: Recipient address rejected: need fully-qualified address; from=<dan@domain1.com> to=<Matthew> proto=ESMTP helo=<mx.domain1.com>
Jan 17 22:58:32 mx postfix/smtpd[17455]: NOQUEUE: reject: RCPT from mx.domain1.com[127.0.0.1]: 504 5.5.2 <Lastname>: Recipient address rejected: need fully-qualified address; from=<dan@domain1.com> to=<Lastname> proto=ESMTP helo=<mx.domain1.com>
Jan 17 22:58:32 mx postfix/smtpd[17455]: disconnect from mx.domain1.com[127.0.0.1] ehlo=1 mail=1 rcpt=0/2 quit=1 commands=3/5
No problems sending via iPhone or webmail.
Has anyone experienced a problem like this?
Thanks
Dan
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