Domain for “HELO”

Your domain for introducing to SMTP-servers. It is recommended to use your real domain. If the domain is not specified, the program tries to determine your domain itself. If it cannot be done for some reason, the domain localhost is used. The use of somebody else's domain or localhost alias is allowed but not recommended - the servers with high security level can refuse to work with you.

If you’re connected to the Internet through Socks5 proxy server, you have to set the proxy server domain manually here – the program can not determine the proxy domain itself.

Email for “MAIL FROM”

Email address used in “MAIL FROM” request to mail server. It is recommended to use your real address. Otherwise, servers with high security level can refuse the request.

Verify only via the most priority SMTP server

This setting instructs the program to check the addresses only on the most priority server and, if this server is down, don't try other servers (with lower priority).

Execute VRFY command for exist e-mails

VRFY command of SMTP protocol [RFC 821] apply to get real name or organization name of e-mail address owner. Unfortunately, only about 10% of mail servers support this command. Turn on VRFY command, check the list and save checking log (not “short” log). You can analyze servers answers by NextStr utility. This feature is experimental.

Execute RSET at end of SMTP session

Without this command some SMTP servers may send blank message to recipient. We do not recommend to turn off this setting.

See also: Program setup