Temporary local problem — please try later. VestaCP, ISPmanager

При конфигурации хостинга, иногда при отправке писем через SMTP и RoudCube возникает такая ошибка «SMTP Error ($code): [451] Temporary local problem — please try later». Лечится так:

#Первым делом, добавляем exim в host.allow
mcedit /etc/host.allow
#в файле пишем и сохраняем
exim: ALL

#Если не помогло, пробуем перестроить конфиг eximа

nano /etc/exim/exim.conf

#вместо

malware = *

#пишем

malware = */defer_ok

Пример:

.ifdef VIRUS_SCAN
        accept
            condition = ${if >{$message_body_size}{2M} {yes}{no}}
            logwrite = Accept message without antivirus check because body size $message_body_size not critical

        warn
            condition = ${if eq{$acl_m3}{no} {yes}{no}}
            add_header = X-Scanned-By: ${extract{1}{/}{${readsocket{/var/run/clamd.scan/clamd.sock}{VERSION}{1s}{} {unscanned}}}}; $tod_full\n

        deny
            message = This message contains virus ($malware_name)
            hosts   = *
            malware = *
            log_message = Rejected: this message contains virus ($malware_name)
            condition = ${if eq{$acl_m3}{no}{yes}{no}}
.endif

Сделать так:

.ifdef VIRUS_SCAN
        accept
            condition = ${if >{$message_body_size}{2M} {yes}{no}}
            logwrite = Accept message without antivirus check because body size $message_body_size not critical

        warn
            condition = ${if eq{$acl_m3}{no} {yes}{no}}
            add_header = X-Scanned-By: ${extract{1}{/}{${readsocket{/var/run/clamd.scan/clamd.sock}{VERSION}{1s}{} {unscanned}}}}; $tod_full\n

        deny
            message = This message contains virus ($malware_name)
            hosts   = *
            malware = */defer_ok
            log_message = Rejected: this message contains virus ($malware_name)
            condition = ${if eq{$acl_m3}{no}{yes}{no}}
.endif