SPF Settings for GymMaster Online

When you send emails through GymMaster you can choose to have those emails sent from your staff member email address, the club’s email address, or from ‘no-reply@gymmasteronline.com’. When emails are sent from ‘no-reply@gymmasteronline.com’ the email will have a special ‘reply-to’ header set so that any emails that are sent in reply will go to your staff email address.

When you add an email address to GymMaster, the system checks that it’s valid for sending. To validate the address, GymMaster checks the SPF, DMARC, and MX records of the emails domain name (this is the part that is after the ‘@’ symbol) to ensure that the email address is likely to exist, and that we can send emails on it’s behalf.

When an email address is added that is not valid for sending, the system will default to using ‘no-reply@gymmasteronline.com’ as the sender to ensure minimal disruption to your operation.

My Own Domain Name

If you have your own email domain, like info@exampleclub.com, you can use that for sending out all emails as the from address. To do this, you just need to ensure the email is associated with your club in GymMaster, in most cases no other setup is required.

If you’ve modified your domains SPF or DMARC records then some additional changes may need to be made in order for the system to send emails on your behalf. You can use mxtoolbox.com/spf.aspx to check your domains SPF record. If no record is configured, then you do not need to make any further changes.


SPF a system for determining which services can send emails on your behalf. It work’s by maintaining a TXT record on your domain name with rules about which services can send emails from your domain. By default domains do not have an SPF record set up, so any party can send emails on your behalf.

It is good practice to add an SPF record to your domain to st

SPF is a record in your domain name which you can use to configure who is allowed to send emails on your behalf. By default, you don’t have as SPF record, so anyone party can send emails on your behalf.

It is stored as part of the TXT record of your domain name registration.

It is good practice to restrict this to stop people impersonating you. SPF records can be set to restrict who can send an email as you.

You can set up a TXT record when you buy a domain name, set up a website, or set up email hosting. If you got a business to set up your website and/or emails, they may have done this setup on your behalf, and you’ll need to make sure that you allow GymMaster to send emails.

We require that you add include:spf.smtp2go.com to your TXT record.

So if your SPF is like this:

v=spf1 a mx ?all

You should change it to this:
v=spf1 a mx include:spf.smtp2go.com ?all


DMARC is a signature on emails being sent that’s built on SPF, which goes to great measures to stop fraudulent emails being sent. It means that only registered signed parties can send an email, claiming to be someone.

Gmail and Yahoo Users

Gmail and Yahoo block sending of emails to their customers from 3rd parties using DMARC. This means that if you have a gmail address and try to send another gmail user an email, that email will not be delivered if the email was not sent through the gmail website.

If you have an @gmail.com email address, you’ll need to have the From address as no-reply@gymmasteronline.com. This is because gmail will block anyone claiming to be sending emails as gmail as a fake person.

In this case, it can be easier to get your own business domain name and website if you don’t want to use gymmasteronline.com and gmail.com as your from address, with the additional benefit of personalized branding unique to your organisation.