Good day, not so much here...
We are on VER 100.0.9518.30214 (1/22/2026)
Our desired configuration for outbounds -is gateway usesage
So the main email server's is 10.110.16.38 (internatl)
We are trying to send outbbound emails to
smtp2g0 == domain specific
10.110.18.45 (internal - and yes, can be pinged from main email server)
10.110.19.94 (internal - and yes, it can be pinged)
'===============
What is happening now.. is that all the round-robin are setting spool
Our setting are:
SMTP-OUT IPV4 Outbound IP4 / Rotate IP List
SMTPOUT IPV6 Disabled
SMTP IPV4 Address = 10.110.16.38(our main email servers' own address)
Gateways:
10.110.18.45 Enabled, GateMode: RoundRobin
(internal - and yes, can be pinged from main email server)
10.110.19.94 Enabled, GateMode: RoundRobin
(internal - and yes, it can be pinged)
Domains: Majority are saying RoundRobin
'===============================
LOGS say "NO IPs available for outbound delivery"
[2026.04.04] 13:41:59.791 [58126120] Added to RemoteDeliveryQueue (0 queued; 1/65 processing)
[2026.04.04] 13:41:59.791 [58126120] [RemoteDeliveryQueue] Begin Processing.
[2026.04.04] 13:41:59.793 [58126120] No IPs available for outbound delivery
[2026.04.04] at MailService.RelayServer.IpRotationHelper.DetermineRotateIpAsync(RemoteDeliverySession session, Boolean ipv6) at MailService.RelayServer.IpRotationHelper.<>c__DisplayClass1_0.<<GetOutboundIPBinding>b__0>d.MoveNext()--- End of stack trace from previous location --- at MailService.RelayServer.IpRotationHelper.GetOutboundIPBinding(RemoteDeliverySession session) at MailService.RelayServer.RemoteDeliverySession.ConfigureOutboundIp(String domainName) at MailService.RelayServer.RemoteDeliverySession.SendBatchedEmails(List`1 batchList, Domain senderDomain)13:41:59.793 [58126120] Removed from RemoteDeliveryQueue (0 queued or processing)
'===================================
Help.. have no clue at this point how to resolve