If you want the customer to reply to the email you must use a valid account.

If you are sending email to a customer who has given you their email address, you need to use the domain name of their site (but it does not need to be a valid mailbox, for example is a fairly common one to use).

Any email not fulfilling these criteria is stopped. These must have a From or To address that is a domain hosted with Fasthosts. There are a number of things you can check however to ensure that your script complies with Fasthosts sending policies. If email's from a web based script are not arriving it is likely that they are not being sent, or that they are being blocked at the point of origin. Try sending an email to a different mailbox to confirm if this is an issue with the recipients or your mailbox.

The email recipient may have spam filters, rules or forwarders set up on their mailbox that are blocking or re-routing email's from you. If you have sent many email's within a short amount of time please wait before sending additional mails. The following limits are in place on all mailbox types. We limit the number of email's that can be sent from a mailbox within set time periods. Our mail platform is designed for business and personal use, not as a mass-mailing service. Details on attachment sizes can be found in our article: Comparing mailboxes and forwarders. There is a limit to the size of attachments you can add to an email. More information is available in our article: Understanding bounced messages. The bounceback message will contain the reason you are unable to send email. You should refer to your ISP for further assistance, but in the majority of these cases, you might be able to simply change the port to use 587 instead of 465. This can help prevent spam, but it also stops you from using our SMTP servers and makes your email software setup a little more difficult. Whilst not very common, some ISPs block outgoing email that isn't delivered through their own mail servers.

Outlook errors after upgrading to Windows 10.

Email setup on an iPhone, iPad or iPod touch.

This indicates that your email software is not set up correctly. Check the settings in your software by following our guides:

I get an error message when I send email.

Problems sending email from a Fasthosts mailbox.

Fast email sender issues