On 2019-05-13 21:56, Root Kev via dovecot wrote:

> Hello Group,
>
> We have dovecot deployed as solely a Pop3 service that is used by our
> applications to pass mail from one application to another internally. 
> We have roughly 4 applications that connect to the Pop3 service every 2
> seconds, to check for new messages and pop them for processing if they
> are present.  Depending on the site, we have between 1024-2048MB of
> memory set for default_vsz_limit.  In all systems we see the Out of
> memory alert several times a day. We previously did not see this at all
> when running on CentOS6, with less memory.

I see this too on servers running quota-service (dunno if it is
related).

---
Tom