# Docker problems **URL:** https://meta.discourse.org/t/docker-problems/359438 **Category:** Self-hosting **Created:** [March 29, 2025, 2:08pm UTC](https://meta.discourse.org/t/docker-problems/359438 "2025-03-29T14:08:01Z") **Posts on this page:** 1 **Showing post:** 12
### Author: ![Heliosurge](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/heliosurge/32/571810_2.png) [@Heliosurge](https://meta.discourse.org/u/Heliosurge) #### Post date: [March 31, 2025, 7:29am UTC](https://meta.discourse.org/t/docker-problems/359438/12 "2025-03-31T07:29:28Z")
This post of mine has the info for setting up a swap file. > [@Failed new install](https://meta.discourse.org/t/failed-new-install/357790/4): > > That is possible. No swap setup. Could you share the command to add a 4g swap. Been awhile since have played around with that. Found this topic working on it. Thanks I think my 4core 4g instance is around $8/month. Saw DO post here recently about them blocking 587. Not sure but if having mail problems. Look into using [www.brevo.com](http://www.brevo.com) they have a free tier that may work well to test. It gives 300 emails free a day --- _[View the full topic](https://meta.discourse.org/t/docker-problems/359438)._