Hello,
That is annoying, I can imagine.
There are some tools available for testing smtp access. It might be something changed in some email settings on the host. These smtp plugins can help you test what might work and what not.
Another option is to contact the support of your hosting provider if they changed anything. It might be that they changed something and will tell you so.
By the way, you did check the notification settings? The “from” email, if it is set, should be set to something from where you can send email.
Regards, Marcel
Thank you for your answer. I will contact the provider.
How can I test whether the emails are still working? Which plugins are recommended? How would that work?
Ooh, good question.
When searching I see a lot smtp plugins, most of them about sending email through gmail and similar.
I would think these few plugins might be good tools to test sending of your current setup:
https://wordpress.org/plugins/check-email/
https://wordpress.org/plugins/wp-mail-logging/
https://wordpress.org/plugins/smtp-mail/
Please understand, I have no experience with these. It might be a good question for your hosting provider as well, your website won’t be the first one with this issue. They might have a preference which plugin you want to use.
Regards, Marcel
Thank you. I will test it and see what happens
By the way, it might also be that nothing changed in your setup.
Email providers like gmail, outlook and icloud are rather strict in what they accept.
Some things to look into are SPF, opendkim and dmarc.
As I found out there was an issue with my mail plugin. I could fix it today.