TELA SMTP REJECT CODES

Tela's mail servers may return an "SMTP REJECT CODE" to provide further information regarding email delivery problems. These codes are not industry standard (Standard codes such as DSN will also be used in the future).

PLEASE FORWARD THIS INFORMATION TO YOUR EMAIL/SYSTEM/NETWORK/DNS ADMINISTRATOR FOR RESOLUTION, ALONG WITH THE REJECTED EMAIL(S).

Here is a list of common reject codes and the suggested resolution:

Code Meaning/Resolution
SR-0005 Sender domain is blacklisted due to excessive spam. Contact techsupp@tela.com for assistance.
SR-0006 Sender domain is blacklisted due to excessive spam. Contact techsupp@tela.com for assistance.
SR-0007 Sender domain is blacklisted due to excessive spam. Contact techsupp@tela.com for assistance.
SR-0010 Sending mail system IP address does not have a reverse DNS entry, or it points to a nonexistent hostname. Correct your reverse DNS entry.
SR-0011 Sending mail system IP address does not have proper reverse DNS entry. (Client IP reverse DNS must point to a valid hostname, and hostname must resolve to the client IP address). Correct your reverse DNS entry.
SR-0040 Client host not allowed to send mail directly. Use your ISP's mail server.
SR-0041 Client host must authenticate first. Use "outgoing server authentication" in your email program.
SR-0042 Client host not allowed to send mail directly. Use your ISP's mail server.
SR-0043 Client host not allowed to send mail directly. Use your ISP's mail server.
SR-0051 Client host not allowed to send mail for gmail.com. Send your email via GMail's servers.
SR-0056 Client host not allowed to send mail for hotmail.com or msn.com. Send your email via Microsoft's servers.
SR-0057 Client host not allowed to send mail for yahoo.com. Send your email via Yahoo's servers.
SR-71 SR-71 is an airplane! Not a reject code!
SR-0070-
SR-0089
Client host name indicates a dynamic address or subscriber host. Please use your ISP's mail server or contact techsupp@tela.com for assistance.