Absolutely crucial for me. I need to send email using my work email with SMTP. Currently need to use Gmail or Thunderbird.

I want to reinforce this request. It would be great to have this feature, i.e., being able to reply/send emails from other providers.

Absolutely crucial. I want to be able to reply/send mails with the same email adresses I forwarded to protonmal where I have access to the respective SMTP server (e.g. gmail), directly in protonmail.

Fastmail allows this, and depending on the address it was initially sent to, already sets the sender identity for you.

Alongside that, the ability to set signatures on a per-sender basis would be great, as my Gmail signature is different than my Fastmail, which is different than my personal domain.

ability to send from external accounts via proton client similar to the way you would in a client like thunderbird

All accounts that have the possibility to use their own domain should also have an SMTP function to integrate Protonmail into the Wordpress site so that the system mails / transactional mails can be sent via Proton.
I use Proton Unlimited and would like to be able to use Proton for my websites as well. SMTP is required for this.

I also would like this so I can send as using an address that people already know, and which forwards to my proton address. Essentially I want people to just see the forwarder address.

It‘s crucial for me as well as I want to use Cloudflares Mail Routing and have a way to respond with any of my alias mails on my custom domain.

BTW, is it a duplicate of https://protonmail.uservoice.com/forums/284483-proton-mail/suggestions/31264327-send-as-from-external-address ?

This is indeed critical for me as well. Is it a duplicate of https://protonmail.uservoice.com/forums/284483-proton-mail/suggestions/31264327-send-as-from-external-address ?

I use it daily on my Gmail account to manage my professional email address. This is absolutely a must!

This is critical. I thought it's standard to have this feature.

Recently subscribed to a Mail Plus Proton account with hope to finally get rid of gmail, but... no SMTP for my employer and university email! I think I will downgrade to a free account and for this feature to be available for non-business user. This is a key feature of Gmail.

I confirm this would be extremely helpful to manage other professional email accounts within Proton. This is the only thing that refrains me from switching to Proton to manage my emails.

Any chance that this is coming soon? For it would be a crucial thing before switching from Gmail.

This would be extremely helpful. +3

This feature is going to decide if I am going to switch to Proton mail.

+1

Hi everybody,

a few hours after posting the message below, I realised this seems to be working?... I have defined the domain in Proton settings, some labels are still red but I have been able to successfully send a message from and to Gmail?

Does it work for you as well?

My family has its own domain name, whose MX currently forwards to Gmail all my incoming messages, and from Gmail I can use that "From" address for outgoing messages. It currently is not possible with Proton (just checked with support, see ticket 1906454) - I wish it was, so that I could extract me a bit further from Google's claws.