Backup mail service and primary MX
3246 last edited by girish
I am using Cloudron on a home server and am reluctant to have it either in the cloud or set up a separate one outside of my home just for email.
I was wondering if using an MX service like spamhero.com, which act as the primary mail server, filter messages and then pass them on to your actual mail server a way around the port blocking problem users like me inevitably run into hosting services at home?
Right now, I am using smtp2go.com as my outgoing mail service, which works well for me.
What experiences do you have that you can share?
3246 last edited by
I've done a little test now using the 30-day free trial from spamhero.com (no affiliation) and it's working well! Here's what I have done:
MX records are now pointing to spamhero.com, which receives mail and passes it along to my Cloudron mail server. For this, I have opened a higher port number and pointed it to the Cloudron's internal port 25.
This means I can receive mail to Cloudron despite the standard SMTP/Mail ports being blocked by my ISP.
I have configured Cloudron to use an external SMTP server, which in my case is smtp2go.com (again, not affiliated with them).
As I have full control over domain authentication and can use non-standard ports, I can send fully authenticated mail from Cloudron to external addresses.
You can host private mail on Cloudron even at home, over broadband or conceivably mobile connection, provided you can do basic port forwarding on your router.
I think spamhero.com will come in handy as they do spam filtering and keep a copy of mail for a short while in case your Cloudron is offline. You can even temporarily point all mail to another email address and then redeliver mail once your box is working again (e.g. connection drop, maintenance, etc).
The downside is that Cloudron now complains that it doesn't handle MX directly as I dared point them elsewhere.
Also, if your home IP changes a lot, which is likely on most home broadband connections, then I can recommend Cloudflare (or a similar service) that offers to update your Cloudron's hostname every time the IP changes.
Questions for you
3246 last edited by
@girish thanks, I didn't see that previously (typical!)
I added made sure the record includes "v=spf1 mx..." but it's still showing as erroring in Cloudron.
d19dotca last edited by