this post was submitted on 11 Jun 2026
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I switched from Gmail to Proton, but now with everything coming out about Proton I'm switching from them too. I started using Posteo which I like but a lot of my accounts having to do with money and finance (including my bank) aren't accepting the Posteo email. They have rejected it over and over and even locked me out stating that I was hacked.

Do you guys have any recommendations for email providers to use that also won't send red flags to my more official accounts?

If it helps, I'm US-based.

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[–] wintermute@discuss.tchncs.de 3 points 2 days ago (3 children)

This is how I use Proton. The setup process is really easy with clear instructions on what to configure in your DNS provider.
The only problem I have is that gmail rejects emails from my domain, I have to use proton’s address.

[–] _aj@piefed.world 1 points 18 hours ago* (last edited 18 hours ago)

If Gmail is rejecting your custom domain, you haven't setup your SPF, or DKIM records etc for you custom domain that authorizes proton to be a valid email sender.

E.g when Gmai receives an email from a custom domain it will look up records to confirm the mail server sending it is valid.

Checkout https://proton.me/support/anti-spoofing-custom-domain or search proton SPF DKIM for guides.

You wouldnt have issues sending from a proton domain as they already have these in place for you.

[–] SleeplessCityLights@programming.dev 2 points 1 day ago (1 children)

You need to build up reputation before you can beat spam filters. This happens all the time to new domains. Make sure to have Dmarc and Dkim configured.

[–] wintermute@discuss.tchncs.de 1 points 1 day ago

How do I build up reputation? Should I keep trying to send from that domain even if it gets rejected?

I have all the DNS things configured as per Proton’s instructions.

[–] MalReynolds@slrpnk.net 2 points 2 days ago (1 children)

Well, that sucks. Guess you must hate the people who reject you. What domain? yy?

[–] wintermute@discuss.tchncs.de 1 points 2 days ago* (last edited 2 days ago)

Yes, but normally I don’t send a lot of emails anyway.

If I send to any @gmail.com address, it’s rejected, unless I change the From to my @proton.me