Sometimes we face a problem with Zimbra webmail interface. If a user wants to login in his webmail it shows "A network service error has occurred". Though its a temporary problem but users became confused and starts feeling unwell about his email service.
By default Zimbra uses DoSFilter Throttling Mechanism to avoid large number of request over a short period of time. So if the Zimbra server see requests more than safe amount from an specific IP address / user that will be throttled and the user may face the mentioned error.
The attribute by which we have to add the safe IP address in Zimbra is "zimbraHttpThrottleSafeIPs". It does not have a default value, however these following IP addresses are whitelisted by default.
1) 127.0.0.1
2) ::1
3) 0:0:0:0:0:0:0:1
4) All mailboxd servers
To add more IP addresses in whitelist please do the following.
Login to Shell >> su zimbra >> zmprov mcf +zimbraHttpThrottleSafeIPs 192.168.2.1 >> zmmailboxdctl restart
By default Zimbra uses DoSFilter Throttling Mechanism to avoid large number of request over a short period of time. So if the Zimbra server see requests more than safe amount from an specific IP address / user that will be throttled and the user may face the mentioned error.
The attribute by which we have to add the safe IP address in Zimbra is "zimbraHttpThrottleSafeIPs". It does not have a default value, however these following IP addresses are whitelisted by default.
1) 127.0.0.1
2) ::1
3) 0:0:0:0:0:0:0:1
4) All mailboxd servers
To add more IP addresses in whitelist please do the following.
Login to Shell >> su zimbra >> zmprov mcf +zimbraHttpThrottleSafeIPs 192.168.2.1 >> zmmailboxdctl restart
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