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zabbix-server: Allow SMTP relay from any loopback

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The Zabbix server resolves *localhost* to `::1`, but Postfix resolves it
to `127.0.0.1`.  This causes Postfix to reject incoming mail from Zabbix
with "Relay access denied."  Explicitly setting the `mynetworks` setting
to include both the IPv4 and IPv6 loopback addresses will ensure that no
mail is rejected from local processes, regardless of how name resolution
happens.
This commit is contained in:
Dustin
2019-04-15 10:01:50 -05:00
parent d8704fcb43
commit 12b645e574
1 changed files with 2 additions and 1 deletions
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3
group_vars/zabbix-server.yml
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@@ -6,4 +6,5 @@ pg_hba_extra:
address: '' address: ''
method: md5 method: md5
smtp_mynetworks: smtp_mynetworks:
- localhost - '[::1]'
- 127.0.0.7