[logback-dev] [JIRA] Created: (LBCLASSIC-52) Allow multiple addresses for "to" property of SMTPAppender

[JIRA Administrator (JIRA)]

Allow multiple addresses for "to" property of SMTPAppender
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                 Key: LBCLASSIC-52
                 URL: http://jira.qos.ch/browse/LBCLASSIC-52
             Project: logback-classic
          Issue Type: Improvement
            Reporter: Andrey Utkin
            Assignee: Ceki Gulcu


SMTPAppender don`t allow to specify multiple addresses in single "to" property. So that, it is (almost?) impossible to specify multiple "to"
addresses via variable substitution. We should know exact number of addresses (variables) to specify appropriate quantity of <to>
elements. But number of "to" addresses could be changed during application using and differ from customer to customer. So, IMFO it
will be helpful to allow specifying multiple addresses in one <to> element. Multiple addresses could be separated by comma, for example (as comma is not valid character for email address).

Right now we are using simple workaround. We subclass SMTPAppender and overwrite addTo():
{code}
    @Override
    public void addTo(String to) {
        StringTokenizer st = new StringTokenizer(to, ",");
        while(st.hasMoreTokens()) {
            super.addTo(st.nextToken().trim());
        }
    }
{code}

This solution works just fine for us. May be it will be good to include this feature in core logback too.

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