==== Required information ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- Related log if you're reporting an issue:
====

iRedMail     v0.9.5-1
iRedAdmin-Pro     v2.4.1 (MySQL)
Linux Ubuntu

error log " /var/log/mail.log"

Jan 22 10:09:05 mx postfix/anvil[2566]: statistics: max connection rate 2/60s for (smtpd:103.47.205.67) at Jan 22 10:04:00
Jan 22 10:09:05 mx postfix/anvil[2566]: statistics: max connection count 2 for (smtpd:103.47.205.67) at Jan 22 10:04:00
Jan 22 10:09:05 mx postfix/anvil[2566]: statistics: max cache size 3 at Jan 22 10:06:40
Jan 22 10:09:53 mx postfix/postscreen[2671]: CONNECT from [103.47.205.67]:35503 to [192.81.221.68]:25
Jan 22 10:09:53 mx postfix/postscreen[2671]: PASS OLD [103.47.205.67]:35503
Jan 22 10:09:53 mx postfix/smtpd[2672]: error: unsupported dictionary type: pcre
Jan 22 10:09:53 mx postfix/smtpd[2672]: connect from a2i323.smtp2go.com[103.47.205.67]
Jan 22 10:09:53 mx postfix/smtpd[2672]: Anonymous TLS connection established from a2i323.smtp2go.com[103.47.205.67]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Jan 22 10:09:53 mx postfix/postscreen[2671]: CONNECT from [103.47.205.67]:46963 to [192.81.221.68]:25
Jan 22 10:09:53 mx postfix/postscreen[2671]: PASS OLD [103.47.205.67]:46963
Jan 22 10:09:53 mx postfix/smtpd[2673]: error: unsupported dictionary type: pcre
Jan 22 10:09:53 mx postfix/smtpd[2673]: connect from a2i323.smtp2go.com[103.47.205.67]
Jan 22 10:09:53 mx postfix/trivial-rewrite[2619]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:09:53 mx postfix/trivial-rewrite[2619]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:09:53 mx postfix/trivial-rewrite[2619]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:09:53 mx postfix/trivial-rewrite[2619]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:09:53 mx postfix/smtpd[2672]: warning: pcre:/etc/postfix/helo_access.pcre is unavailable. unsupported dictionary type: pcre
Jan 22 10:09:53 mx postfix/smtpd[2672]: warning: pcre:/etc/postfix/helo_access.pcre: table lookup problem
Jan 22 10:09:53 mx postfix/smtpd[2672]: NOQUEUE: reject: RCPT from a2i323.smtp2go.com[103.47.205.67]: 451 4.3.5 <a2i323.smtp2go.com>: Helo command rejected: Server configuration error; from=<ticket@smtp2go.com> $
Jan 22 10:09:54 mx postfix/smtpd[2672]: disconnect from a2i323.smtp2go.com[103.47.205.67]
Jan 22 10:09:54 mx postfix/smtpd[2673]: Anonymous TLS connection established from a2i323.smtp2go.com[103.47.205.67]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Jan 22 10:09:54 mx postfix/trivial-rewrite[2619]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:09:54 mx postfix/trivial-rewrite[2619]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:09:54 mx postfix/trivial-rewrite[2619]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:09:54 mx postfix/trivial-rewrite[2619]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:09:54 mx postfix/smtpd[2673]: warning: pcre:/etc/postfix/helo_access.pcre is unavailable. unsupported dictionary type: pcre
Jan 22 10:09:54 mx postfix/smtpd[2673]: warning: pcre:/etc/postfix/helo_access.pcre: table lookup problem
Jan 22 10:09:54 mx postfix/smtpd[2673]: NOQUEUE: reject: RCPT from a2i323.smtp2go.com[103.47.205.67]: 451 4.3.5 <a2i323.smtp2go.com>: Helo command rejected: Server configuration error; from=<ticket@smtp2go.com> $
Jan 22 10:09:54 mx postfix/smtpd[2673]: disconnect from a2i323.smtp2go.com[103.47.205.67]
Jan 22 10:10:52 mx postfix/postscreen[2671]: CONNECT from [64.79.155.192]:44606 to [192.81.221.68]:25
Jan 22 10:10:52 mx postfix/postscreen[2671]: PASS OLD [64.79.155.192]:44606
Jan 22 10:10:52 mx postfix/smtpd[2672]: connect from zgateway.zuora.com[64.79.155.192]
Jan 22 10:10:52 mx postfix/trivial-rewrite[2619]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:10:52 mx postfix/trivial-rewrite[2619]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:10:52 mx postfix/trivial-rewrite[2619]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:10:52 mx postfix/trivial-rewrite[2619]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:10:52 mx postfix/smtpd[2672]: warning: pcre:/etc/postfix/helo_access.pcre is unavailable. unsupported dictionary type: pcre
Jan 22 10:10:52 mx postfix/smtpd[2672]: warning: pcre:/etc/postfix/helo_access.pcre: table lookup problem
Jan 22 10:10:52 mx postfix/smtpd[2672]: NOQUEUE: reject: RCPT from zgateway.zuora.com[64.79.155.192]: 451 4.3.5 <zgateway.zuora.com>: Helo command rejected: Server configuration error; from=<zuora@mailer2.zendes$
Jan 22 10:10:52 mx postfix/smtpd[2672]: disconnect from zgateway.zuora.com[64.79.155.192]
Jan 22 10:14:12 mx postfix/anvil[2566]: statistics: max connection rate 2/60s for (smtpd:103.47.205.67) at Jan 22 10:09:53
Jan 22 10:14:12 mx postfix/anvil[2566]: statistics: max connection count 2 for (smtpd:103.47.205.67) at Jan 22 10:09:53
Jan 22 10:14:12 mx postfix/anvil[2566]: statistics: max cache size 2 at Jan 22 10:10:52
Jan 22 10:14:55 mx postfix/postscreen[2708]: CONNECT from [103.47.205.67]:56899 to [192.81.221.68]:25
Jan 22 10:14:55 mx postfix/postscreen[2708]: PASS OLD [103.47.205.67]:56899
Jan 22 10:14:55 mx postfix/proxymap[2710]: error: unsupported dictionary type: mysql
Jan 22 10:14:55 mx postfix/smtpd[2709]: error: unsupported dictionary type: pcre
Jan 22 10:14:55 mx postfix/smtpd[2709]: connect from a2i323.smtp2go.com[103.47.205.67]
Jan 22 10:14:55 mx postfix/smtpd[2709]: Anonymous TLS connection established from a2i323.smtp2go.com[103.47.205.67]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Jan 22 10:14:56 mx postfix/proxymap[2710]: message repeated 10 times: [ error: unsupported dictionary type: mysql]
Jan 22 10:14:56 mx postfix/proxymap[2710]: warning: mysql:/etc/postfix/mysql/transport_maps_user.cf is unavailable. unsupported dictionary type: mysql
Jan 22 10:14:56 mx postfix/trivial-rewrite[2712]: warning: proxy:mysql:/etc/postfix/mysql/transport_maps_user.cf lookup error for "*"
Jan 22 10:14:56 mx postfix/proxymap[2710]: warning: mysql:/etc/postfix/mysql/transport_maps_user.cf is unavailable. unsupported dictionary type: mysql
Jan 22 10:14:56 mx postfix/proxymap[2710]: warning: mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf is unavailable. unsupported dictionary type: mysql
Jan 22 10:14:56 mx postfix/trivial-rewrite[2712]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:14:56 mx postfix/trivial-rewrite[2712]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:14:56 mx postfix/trivial-rewrite[2712]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:14:56 mx postfix/smtpd[2709]: warning: pcre:/etc/postfix/helo_access.pcre is unavailable. unsupported dictionary type: pcre
Jan 22 10:14:56 mx postfix/smtpd[2709]: warning: pcre:/etc/postfix/helo_access.pcre: table lookup problem
Jan 22 10:14:56 mx postfix/smtpd[2709]: NOQUEUE: reject: RCPT from a2i323.smtp2go.com[103.47.205.67]: 451 4.3.5 <a2i323.smtp2go.com>: Helo command rejected: Server configuration error; from=<ticket@smtp2go.com> $
Jan 22 10:14:56 mx postfix/smtpd[2709]: disconnect from a2i323.smtp2go.com[103.47.205.67]
Jan 22 10:14:57 mx postfix/postscreen[2708]: CONNECT from [148.163.157.75]:41455 to [192.81.221.68]:25
Jan 22 10:14:57 mx postfix/postscreen[2708]: PASS OLD [148.163.157.75]:41455
Jan 22 10:14:57 mx postfix/smtpd[2709]: connect from mx0a-001e4901.pphosted.com[148.163.157.75]
Jan 22 10:14:58 mx postfix/smtpd[2709]: Anonymous TLS connection established from mx0a-001e4901.pphosted.com[148.163.157.75]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
Jan 22 10:14:58 mx postfix/trivial-rewrite[2712]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:14:58 mx postfix/trivial-rewrite[2712]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:14:58 mx postfix/trivial-rewrite[2712]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:14:58 mx postfix/trivial-rewrite[2712]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:14:58 mx postfix/smtpd[2709]: warning: pcre:/etc/postfix/helo_access.pcre is unavailable. unsupported dictionary type: pcre
Jan 22 10:14:58 mx postfix/smtpd[2709]: warning: pcre:/etc/postfix/helo_access.pcre: table lookup problem
Jan 22 10:14:58 mx postfix/smtpd[2709]: NOQUEUE: reject: RCPT from mx0a-001e4901.pphosted.com[148.163.157.75]: 451 4.3.5 <mx0b-001e4901.pphosted.com>: Helo command rejected: Server configuration error; from=<asa$
Jan 22 10:15:47 mx roundcube: PHP Warning:  include_once(/opt/www/roundcubemail/program/localization/ar/messages.inc): failed to open stream: No such file or directory in /opt/www/roundcubemail-1.2.0/program/lib$
Jan 22 10:15:47 mx roundcube: PHP Warning:  include_once(): Failed opening '/opt/www/roundcubemail/program/localization/ar/messages.inc' for inclusion (include_path='/opt/www/roundcubemail-1.2.0/vendor/pear-pear$
Jan 22 10:15:47 mx postfix/submission/smtpd[2717]: error: unsupported dictionary type: pcre
Jan 22 10:15:47 mx postfix/submission/smtpd[2717]: connect from localhost[127.0.0.1]
Jan 22 10:15:47 mx postfix/submission/smtpd[2717]: Anonymous TLS connection established from localhost[127.0.0.1]: TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)
Jan 22 10:15:47 mx postfix/trivial-rewrite[2712]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:15:47 mx postfix/trivial-rewrite[2712]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:15:47 mx postfix/trivial-rewrite[2712]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:15:47 mx postfix/trivial-rewrite[2712]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:15:47 mx postfix/submission/smtpd[2717]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 451 4.3.0 <admin@salonatcom.com>: Temporary lookup failure; from=<admin@salonatcom.com> to=<hosam.zewain@gmail.$
Jan 22 10:15:47 mx roundcube: ERROR: Invalid response code received from server (451)
Jan 22 10:15:47 mx roundcube: <flhttp9m> SMTP Error: Failed to add recipient 'hosam.zewain@gmail.com'. 4.3.0 <admin@salonatcom.com>: Temporary lookup failure (Code: 451) in /opt/www/roundcubemail-1.2.0/program/l$
Jan 22 10:15:47 mx postfix/submission/smtpd[2717]: disconnect from localhost[127.0.0.1]
Jan 22 10:16:01 mx postfix/smtpd[2709]: disconnect from mx0a-001e4901.pphosted.com[148.163.157.75]
Jan 22 10:16:19 mx roundcube: PHP Warning:  include_once(/opt/www/roundcubemail/program/localization/ar/messages.inc): failed to open stream: No such file or directory in /opt/www/roundcubemail-1.2.0/program/lib$
Jan 22 10:16:19 mx roundcube: PHP Warning:  include_once(): Failed opening '/opt/www/roundcubemail/program/localization/ar/messages.inc' for inclusion (include_path='/opt/www/roundcubemail-1.2.0/vendor/pear-pear$
Jan 22 10:16:19 mx postfix/submission/smtpd[2717]: connect from localhost[127.0.0.1]
Jan 22 10:16:19 mx postfix/submission/smtpd[2717]: Anonymous TLS connection established from localhost[127.0.0.1]: TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)
Jan 22 10:16:19 mx postfix/submission/smtpd[2717]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 451 4.3.0 <admin@salonatcom.com>: Temporary lookup failure; from=<admin@salonatcom.com> to=<hosam.zewain@gmail.$
Jan 22 10:16:19 mx roundcube: ERROR: Invalid response code received from server (451)
Jan 22 10:16:19 mx roundcube: <flhttp9m> SMTP Error: Failed to add recipient 'hosam.zewain@gmail.com'. 4.3.0 <admin@salonatcom.com>: Temporary lookup failure (Code: 451) in /opt/www/roundcubemail-1.2.0/program/l$
Jan 22 10:16:19 mx postfix/submission/smtpd[2717]: disconnect from localhost[127.0.0.1]
Jan 22 10:16:21 mx postfix/postscreen[2708]: CONNECT from [217.175.197.43]:36543 to [192.81.221.68]:25
Jan 22 10:16:21 mx postfix/postscreen[2708]: PASS OLD [217.175.197.43]:36543
Jan 22 10:16:21 mx postfix/smtpd[2709]: connect from uspmta197043.emsmtp.com[217.175.197.43]
Jan 22 10:16:21 mx postfix/smtpd[2709]: Anonymous TLS connection established from uspmta197043.emsmtp.com[217.175.197.43]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
Jan 22 10:16:21 mx postfix/trivial-rewrite[2712]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:16:21 mx postfix/trivial-rewrite[2712]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:16:21 mx postfix/trivial-rewrite[2712]: warning: proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf: table lookup problem
Jan 22 10:16:21 mx postfix/trivial-rewrite[2712]: warning: virtual_mailbox_domains lookup failure
Jan 22 10:16:21 mx postfix/smtpd[2709]: warning: pcre:/etc/postfix/helo_access.pcre is unavailable. unsupported dictionary type: pcre
Jan 22 10:16:21 mx postfix/smtpd[2709]: warning: pcre:/etc/postfix/helo_access.pcre: table lookup problem
Jan 22 10:16:21 mx postfix/smtpd[2709]: NOQUEUE: reject: RCPT from uspmta197043.emsmtp.com[217.175.197.43]: 451 4.3.5 <uspmta197043.emsmtp.com>: Helo command rejected: Server configuration error; from=<suite9@xp$
Jan 22 10:16:21 mx postfix/smtpd[2709]: disconnect from uspmta197043.emsmtp.com[217.175.197.43]

Dear Team,
After i updating the server to the new iRedmail i can't send or receive any email.
Why i try to send an email i get the following error:

SMTP Error (451): Failed to add recipient "hosam.zewain@gmail.com" (4.3.0 <admin@salonatcom.com>: Temporary lookup failure).

Thanks in advance.