*) Please paste the original error message.
*) Paste output of command "postconf -n" to help troubleshoot.
Error SMTP: [450] 4.7.1 <END-OF-MESSAGE>: End-of-data rejected: Policy Rejection- Invalid data+iRedmail
dovecot_destination_recipient_limit=1 is missing in postconf -n .but this entry is showing in main.cf file.
Error found while sending from roundcube
Mar 24 12:03:05 mailsrv postfix/smtpd[27509]: connect from mailsrv.xxx.com[127.0.0.1]
Mar 24 12:03:05 mailsrv postfix/smtpd[27509]: 814F0CC0073: client=mailsrv.xxx.com[127.0.0.1], sasl_method=LOGIN, sasl_username=test@xyz.com
Mar 24 12:03:07 mailsrv policyd: connection from: 127.0.0.1 port: 41118 slots: 0 of 2044 used
Mar 24 12:03:07 mailsrv policyd: invalid triplet_array[8][2]: (recipient throttle):
Mar 24 12:03:07 mailsrv postfix/smtpd[27509]: 814F0CC0073: reject: END-OF-MESSAGE from mailsrv.xxx.com[127.0.0.1]: 450 4.7.1 <END-OF-MESSAGE>: End-of-data rejected: Policy Rejection- Invalid data; from=<test@xyz.com> proto=ESMTP helo=<webmail.xyz.com>
Mar 24 12:03:07 mailsrv postfix/cleanup[27518]: 814F0CC0073: message-id=<1ca8861687465bcbe5932fc71a80ebbc@xyz.com>
Mar 24 12:03:07 mailsrv roundcube: SMTP Error: SMTP error: Failed to send data in /var/www/webmails/xyz/program/include/main.inc on line 1485 (POST /?_unlock=loading1364106582303&_lang=undefined?_task=mail&_action=send)
Mar 24 12:03:07 mailsrv postfix/smtpd[27509]: disconnect from mailsrv.xxx.com[127.0.0.1]
Here i tried to send mails using test@xyz.com to multiple email ids using webmail.