BT Mail email send limits (error 452 or 0781)

If you're seeing error 452 or 0781 when trying to send emails, this could be because you've exceeded our email send limits. These limits are not intended to restrict your use of the service, but are there to protect our service from misus. However, we understand that occasionally you may have a legitimate need to send an email to lots of recipients.

This help is about our new BT Mail service. If you use BT Yahoo Mail, you can find help here >

BT Mail is a consumer email service that's not intended for business use so there are limits on the number of recipients or volumes of emails you can send in any given period of time. These limits are not intended to restrict your use of the service, but are there to protect our service from misuse. However, we do understand that occasionally some customers may have a legitimate need to send an email to multiple recipients.

If you get an error 452 or 0781 when trying to send an email to lots of recipients this could be because you've exceeded our maximum send limit.

If you are using an email client then you might receive an error message like this.

Email send limit error message

We suggest you split your mailing list into smaller groups and then try sending your email over a longer period of time.

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