Yahoo has recently changed its policies to authenticate emails sent from yahoo.com addresses.

This may affect the deliverability of emails to your customers if you use a yahoo.com email address.

What does the change mean

Since last weekend, Yahoo has changed its email authentication policy (using a protocol called DMARC), so that if an email is sent with a yahoo.com address in the From field, but it was not sent directly by Yahoo’s own servers, it will be reported as spam.
Any receiving mail server that checks such email details with Yahoo will believe that the email is spam, and reject it. It is not clear how many mail providers/ISPs perform this check but for example Yahoo itself obviously does, and so apparently Comcast.

Does this change affect you?

Bookeo sends email to your customers using as “From” address your business email address, as set by you in Settings/Business details and logo.

• If you have set a yahoo.com address as your business address, then this change affects you. Many of your customers may not receive confirmation emails, reminder emails, etc.
• If you have not set a yahoo.com address as your business address, then this change does not affect you, and you may ignore the rest of this post.

This problem is obviously not specific to Bookeo. It has affected every service that sends email on behalf of its users. This change has been analyzed (and criticized) widely in recent days. See for example:

https://www.theregister.co.uk/2014/04/08/yahoo_breaks_every_mailing_list_in_the_world_says_email_guru/

https://www.pcworld.com/article/2141120/yahoo-email-antispoofing-policy-breaks-mailing-lists.html

https://blog.mailchimp.com/yahoo-changes-may-affect-your-deliverability/

https://blog.getresponse.com/alert-change-yahoo-dmarc-policy-affects.html

How to solve the problem

Login to your Bookeo account as manager, then click on Settings/Business details and logo.
If you have not set a yahoo.com address in the field “Email address”, then this problem does not affect you. You do not need to take any action.

If you have a yahoo.com address in that field, then we recommend simply using a different email address. You can for example sign up for a free address at Gmail, or Outlook.com, and use that address as “Email address” in Bookeo.

For example you can also consider setting up a filter in a Gmail account so that any email sent to yourname@gmail.com gets automatically forwarded to your old yahoo.com address, so that you can still receive all emails as usual.