General Questions

Why can’t I send email?

Go here for some help figuring out why you are not able to send email.

Why can’t I receive email?

Go here for some help figuring out why you are not receiving email.

Does Gandimail support DKIM?

No, Gandimail does not support DKIM.

If you use Gandi’s DNS however, you are free to add the TXT zone file record needed to add the necessary “_domainkey” TXT entry for your domain. You would then need to see with your outgoing email provider concerning the configuration of their mail server for the service.

Can use a forwarding address as a “from:” or “reply-to” address in my email client?

Technically, yes, but you may encounter problems with some email not being received when sending “from” a forwarding address. Since it is not technically possible for email to originate from a forwarding address, such messages are considered by some mail servers to be “spoofed” and therefore block them.

You may therefore find it easier to replace or supplement the forwarding addresses with an actual mailbox (with aliases, if necessary), then configure your email client to be able to send and receive from that address.

Do I have to buy hosting to use Gandi Mail?

You can use Gandi Mail with your domain regardless of what type of hosting you have. You can even use it without having any hosting at all, though you may want to upgrade one or more mailboxes to Premium ones, depending of your usage.

Do I have to use Gandi’s DNS to use Gandi Mail?

No. You just need to be sure you have our MX records in place.

@ 10800 IN MX 50 fb.mail.gandi.net.
@ 10800 IN MX 10 spool.mail.gandi.net.

How can I change mail servers ?

If you are using Gandi’s LiveDNS, you need to update the “MX” record entries that are in your domains DNS records, by replacing them with the ones that your new email provider gives you.

Can I use Gandi Mail with an external domain?

No. GandiMail can not be used with a domain not registered with Gandi.

Using GandiMail from several locations (pc/phone/tablet)

I’m always on the go and read emails on various computers, phones etc. but something is not working!

People are frequently on the go, reading emails on their smartphones, on their tablet computers, back at the office, and when they come home. Problems can occur (missing emails at one location, problems in sorting mails, etc.), however if you have not designed the “system” to work this way…

In a word, the solution is: IMAP

IMAP is an email protocol that leaves messages on the server, and is designed so that you can access your email from multiple locations. (The ‘opposite’ of this is POP, which should only be used when you read emails on one computer).

Concretely, you will want to be sure that everything that you use to read your emails (ex. iPhone, iPad, home/work PC) are all set up to access your emails using IMAP. If even one of your computers in your personal ‘network’ use POP, this will cause problems in consulting your emails in the other locations. All the more so if you have your email client (Outlook, Apple Mail, Thunderbird, etc.) set up to download messages from the server!

How do I write a ruby action script to work with Gandimail?

(Contributed by Guillaume F.)

This is an example ruby action script with the proper settings for use with Gandimail:

ActionMailer::Base.smtp_settings = {
       :address => "mail.gandi.net",
       :port => 587,
       :authentication => :login,
       :user_name => 'USERNAME',
       :password => 'PASSWORD',

Where can I find a mail’s full headers?

There are almost as many ways of obtaining message headers as there are email clients, so it may be best to search the web for “how to view message headers in [your email application, i.e. Apple Mail or Thunderbird]”.

For example, in English, in the current version of Thunderbird, you can see the full headers by clicking on your email in question, then on “View” in the navigation menu, and then find “Headers” and select “All”


What is the URL format to use to configure Thunderbird/Lightning?

The form is like this (replace the generic info in the example with those of your specific account):

Note too that a connector exists for Thunderbird at https://sogo.nu/download.html#/frontends


You may have received a spam email that looks as though it was sent from an address on your own domain name.

There is no need to worry, as this was done by a technique called “Spoofing”, where the sender simply makes the email look like it was sent from your domain name.


If you see such an email, it does not mean that your email account has been hacked, or that the email was actually sent from your account.

There is no purely technical solution to counter this behaviour, as it is similar to getting someone to stop writing your return address on the back of a paper envelope.

Here are some tips in minimizing spam/junk mail to your account or having your email account spoofed (When spammers send mail in such a way that the e-mail appears to have been sent from your email address):

  • Don’t publish your email address on your web pages but rather use web forms to receive email. If you wish to publish your email address, place it in an image. This way web crawlers cannot spider through your web pages and extract coding to get your email address
  • Don’t submit your email address to public forums, mailing lists, newsletters, etc. Similarly don’t give out your business card that contain your email address to contests or draws as often the info gets submitted to marketing campaigns where any number of individuals may have access to your e-mail address information.