Hi,<br><br>

<p class="MsoNormal"><span style="" lang="EN-US">I am
interested in using SER DNS failover, but I am getting some problems.</span></p>

<p class="MsoNormal"><span style="" lang="EN-US">A failure
can be a 503 error response, ICMP errors or a timeout due to a not received
response.</span></p>

<p class="MsoNormal"><span style="" lang="EN-US">Does anyone
know if SER is able to detect these failures and then select an alternative
destination for the message?</span></p>

<p class="MsoNormal"><span style="" lang="EN-US">If the ICMP
errors can't be detected, can this be solved with timers?</span></p>

<span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;;" lang="EN-US">I turned on use_dns_cache and use_dns_failover, but
when the message fails to be delivered to the first destination,<br>&nbsp;SER never tries
the second destination, which was configured with DNS SRV.</span><br><br>regards,<br><br>Mário Ferreira<br>