Kerio Tech Firewall6 Manuel d'utilisateur télécharger pdf (Page 233)

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16.4 Relay SMTP server

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Warning:

1. If SMTP is speciﬁed by a DNS name, it cannot be used until WinRoute resolves a cor-

responding IP address (by a DNS query). The IP address of speciﬁed SMTP server

cannot be resolved warning message is displayed in the SMTP Relay tab until the IP

address is not found. If the warning is still displayed, this implies that an invalid

(non-existent) DNS name is speciﬁed or the DNS server does not respond.

If the warning on the SMTP server tab is still displayed, it means that an invalid

DNS name was speciﬁed or that an error occured in the communication (DNS server

is not responding). Therefore, we recommend you to specify SMTP server by an IP

address if possible.

2. Communication with the SMTP server must not be blocked by any rule, otherwise the

Connection to SMTP server is blocked by traﬃc rules error is reported upon clicking

the Apply button.

For detailed information about traﬃc rules, refer to chapter 6.

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Kerio Tech Firewall6 Manuel d'utilisateur Page 233

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