<p>Hi all. </p><p>Right now (Mercury 4.62) the only way for the VERP processor to suspend/delete a subscriber whose e-mail is bouncing is when the corresponding total error count exceeds a certain fixed threshold level either set to "N messages per week", "N messages per month" or "N messages in total".</p><p>Considering that the delivery errors are often transient, ie they usually get fixed in a relatively short period of time, I think it would be useful to have fourth error count mode (which I call "max-errors-in-a-row"), in which a subscriber would be suspended/deleted only if the delivery failed for "more than N messages consecutively". This would be quite trivial to implement, because the error count just needs to be to reset to 0 each time a message is successfully delivered.</p><p>In my opinion this additional mode could prove more effective than others in certain situations, such as the case a low-traffic distribution list in which each subscriber receives just a few message per month in the average (in this situation the other modes seem to be too much draconian).</p><p>Just my 2 Euro-cents :-)</p><p>Thanks for the attention,   Corrado </p>