Proton.me domain

Update 2026 - there doesn't currently seem to be a problem with proton.me emails, but just leaving this guidance here incase the issue reoccurs.

Previous problems using proton.me as the 'reply-to email'

We used to see very substantially reduced delivery and open rates if using a proton.me domain email address as a reply-to address when sending Action Network emails.

No issues noticed with the older protonmail.com email addresses.

Note: Local Groups, XRUK or Nation/Region circles, or other people holding roles in the movement can apply for an xxxx@extinctionrebellion.uk email address