support MAIL command with a null #7
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MAIL command with a null is required in rfc5321 as shown below. https://tools.ietf.org/html/rfc5321#section-3.6.3 ``` One way to prevent loops in error reporting is to specify a null reverse-path in the MAIL command of a notification message. When such a message is transmitted, the reverse-path MUST be set to null (see Section 4.5.5 for additional discussion). A MAIL command with a null reverse-path appears as follows: MAIL FROM:<> ``` In fact, Postfix bounce emails have MAIL command set to "FROM:<>". But, MailHog validation judges "FROM:<>" as an error. Therefore, Postfix bounce email cannot be received by MailHog. This Pull Request allows you to receive Postfix bounce email by support MAIL command with a null.
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MAIL command with a null is required in rfc5321 as shown below.
https://tools.ietf.org/html/rfc5321#section-3.6.3
In fact, Postfix bounce emails have MAIL command set to "FROM:<>".
But, MailHog validation judges "FROM:<>" as an error.
Therefore, Postfix bounce email cannot be received by MailHog.
This Pull Request allows you to receive Postfix bounce email by support MAIL command with a null.