High Availability Dovecot / Roundcube / PostfixAdmin ?

[Robert Schetterer]

Am 09.07.21 um 17:13 schrieb Joelly Alexander:
> I do that with two Debian 10 servers - Postfix, PostfixAdmin, Dovecot, 
> MariaDB, Keepalived.
> MariaDB in active/active mode, each node accesses the DB via localhost, 
> Dovecot with dsync replication, Keepalived for a virtual ip.
> The MX record points to each node, DNS A/PTR records for the clients 
> pointing to the virtual ip.

you may have a look to

https://blog.sys4.de/loadbalancing-mit-keepalived-postfix-dovecot-de.html

its old  but the loadbalancing part
maybe good enough as a pointer


> 
> I separated Roundcube from the mail server and have them running on two 
> separate VM's as i didn't want to expose the webserver on the mail 
> servers to the Internet.
> There is also keepalived on the two webmail VM's for a virtual ip where 
> the users connect to.
> Both Roundcube instances connect to the DB or SMTP/LDAP server via the 
> virtual ip there.
> 
> Working since almost two years without issues.
> 
> On 7/9/21 11:15 AM, White, Daniel E. (GSFC-770.0)[NICS] wrote:
>> This is a new setup, running on RHEL 8 with the latest everything.
>>
>> Has anyone out there set up a high availability pair of Dovecot servers 
> - with Roundcube and PostfixAdmin - successfully ?
>>
>> "Callahan's Law: Shared pain is lessened; shared joy, increased — 
> thus do we refute entropy" (Spider Robinson)
>>
>>


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