Too many recipients error

Problem Description

AspEmail generates the following error when trying to send a message:

Persits.MailSender.4 error '800a0006'
552 5.5.3 Too many recipients

Solution

This error comes directly from your SMTP server. It means that you are trying to send a message to more recipients than your SMTP server allows.

To fix the error, reconfigure your SMTP server or consider sending each individual message to fewer recipients. Also consider using AspEmail's message queuing feature described here.

If your SMTP server is the Microsoft SMTP Service, the recipient-per-message value can be increased using the following dialog (the box marked Limit number of recipients per message to):