For security purposes, the following limitations will apply to incoming email flow on Letsignit's SMTP servers.

For each sender :

No more than 30 messages per minute will be accepted. Once this limit is exceeded, e-mails will be temporarily blocked (code 450) and the sending server will attempt to resend later (approximately every 5 minutes, unless you have changed your server configuration).

No more than 10,000 messages will be accepted in a 24 hour rolling period. If this limit is exceeded, e-mails will be permanently rejected (code 550) and the sender will receive a non-delivery notification in cases where the outgoing server handles it correctly.

#smtp #limits #security #mails #sending

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