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554 Too many recipients


How to fix “554 Too many recipients” email error

Here at Bobcares.com, we provide Outsourced Tech Support to web hosting providers. As part of our service, we resolve email errors posted by hosting users.

A common email bounce error we see in VPS and Shared servers is:

The rejected e-mail address was 'user@domain.com'. Subject 'My mail subject', Server Error: 554, Server Response: 554 Too many recipients, Server: 'mx.sender.com', Windows Live Mail Error ID: 0x800CCC79, Protocol: SMTP, Port: 587, Secure(SSL): No

This error is seen when people attempt to send group mails with a large CC or BCC list. (more…)