Re: [mailop] Intermittent slow email delivery

2020-07-16 Thread Simon Lyall via mailop
On Wed, 15 Jul 2020, Job Cacka via mailop wrote: Incidentally, the last was also sent to mailop-ow...@mailop.org because that was what was listed on the web page. For future reference who is on the admin team? The team is listed here: https://www.mailop.org/about/ In case others are wondering

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Job Cacka via mailop
Well, it is good to know the cause of the problem. The reposting wasn't random. I am new to the list and had difficulty sending my first few emails, so I thought I had done something wrong again the first two times. When those two hadn't processed but others were hitting the archive my initial ass

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Graeme Fowler via mailop
[admin hat on] On 15 Jul 2020, at 15:55, Job Cacka via mailop wrote: > Sorry for spamming the list guys. > Take a look at the header information. > The four copies were sent over a couple of days and you got them when? > > Mon Jul 13 16:58:47 BST 2020 > Mon Jul 13 19:08:50 BST 2020 > Mon Jul

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Job Cacka via mailop
Sorry for spamming the list guys. Take a look at the header information. The four copies were sent over a couple of days and you got them when? *Mon Jul 13 16:58:47 BST 2020* *Mon Jul 13 19:08:50 BST 2020* *Mon Jul 13 23:36:35 BST 2020* *Tue Jul 14 19:02:47 BST 2020* If you only received them on

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Jaroslaw Rafa via mailop
Dnia 14.07.2020 o godz. 11:02:47 Job Cacka via mailop pisze: > Perhaps this original message is still stuck in some queue? I wrote it > yesterday and it never made it through to the list. At least it isn't in > the archive so try again. I got all (is that all?) four copies you sent. -- Regards,

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Laura Atkins via mailop
Hi, Job, I’ve seen 4 copies of this message this morning. Things are working here. laura > On 13 Jul 2020, at 23:36, Job Cacka via mailop wrote: > > > I am re-submitting thr because it doesn't seem to be showing in the > newsgroup. > > So I spoke a bit too soon on the firewall.This morn

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Job Cacka via mailop
Perhaps this original message is still stuck in some queue? I wrote it yesterday and it never made it through to the list. At least it isn't in the archive so try again. So I spoke a bit too soon on the firewall last week. Monday morning I had time to look at it from a physical and configuration s

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Job Cacka via mailop
Probably because of the reply all gmail requires. It wasn't hitting mailop@mailop.org. On Mon, Jul 13, 2020 at 11:15 AM Luis E. Muñoz wrote: > > > On 13 Jul 2020, at 11:08, Job Cacka wrote: > > > This didn't go through two hours ago from my gmail account. > > I saw it two hours ago. > > Best reg

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Job Cacka via mailop
This didn't go through two hours ago from my gmail account. So I spoke a bit too soon on the firewall.This morning I had time to look at it from a physical and configuration sense. It is a pfSense firewall that has multiple WAN ports enabled for multiple ISP. The path from the WAN that contains t

Re: [mailop] Intermittent slow email delivery

2020-07-15 Thread Job Cacka via mailop
So I spoke a bit too soon on the firewall.This morning I had time to look at it from a physical and configuration sense. It is a pfSense firewall that has multiple WAN ports enabled for multiple ISP. The path from the WAN that contains the MX IPs does not load balance or failover to the other WAN

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Ángel via mailop
On 2020-07-10 at 14:36 -0700, Job Cacka wrote: > There is PAT firewall that load balances multiple networks. > A Barracuda spam filter > And then the MX server. > > > It was working well until about 6-8 weeks ago when we began to notice > the intermittent issue. > > > Thanks, > Job I would ha

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Luis E. Muñoz via mailop
On 10 Jul 2020, at 14:36, Job Cacka via mailop wrote: There is PAT firewall that load balances multiple networks. Hopefully not a descendant of a PIX. I've never have had happy stories involving [NP]AT and SMTP servers. I tend to go with what others have said: The fw might be trying to r

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Lukas Tribus via mailop
On Fri, 10 Jul 2020 at 23:36, Job Cacka via mailop wrote: > > There is PAT firewall that load balances multiple networks. Maybe one of those destination networks is unreachable, while others are reachable, so when the load-balancing decision points to the unreachable network, the TCP session will

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Job Cacka via mailop
I checked my ISP and they wrap it in a vlan and hand it off to us, so that is fine. On the firewall I noticed several high volume rules that were logging since 2018 and turned them off in case it was causing an issue. Looking at PAT/NAT we are translating in bound and outbound traffic so that sho

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Jay Hennigan via mailop
On 7/10/20 14:36, Job Cacka via mailop wrote: There is PAT firewall that load balances multiple networks. This is a possibility, especially if the load-balancing is pushing some incoming traffic to the wrong internal network. A Barracuda spam filter If this is configured to drop traffic b

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Job Cacka via mailop
There is PAT firewall that load balances multiple networks. A Barracuda spam filter And then the MX server. It was working well until about 6-8 weeks ago when we began to notice the intermittent issue. Thanks, Job On Fri, Jul 10, 2020, 12:30 PM Luis E. Muñoz via mailop wrote: > On 10 Jul 2020,

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Job Cacka via mailop
Right. So where should I begin? Firewall says it passes all traffic. Next would be Barracuda it doesn't show any drops. I suppose on the server I could look at tcpdump. Thanks! Job On Fri, Jul 10, 2020, 11:26 AM Jay Hennigan via mailop wrote: > On 7/10/20 11:06, Job Cacka via mailop wrote:

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Luis E. Muñoz via mailop
On 10 Jul 2020, at 9:47, Adam D. Barratt via mailop wrote: On Fri, 2020-07-10 at 09:22 -0700, Job Cacka via mailop wrote: slowmailtest...@ccbox.com slowmailtest...@ccbox.com slowmailtest...@p-r-c.com slowmailtest...@p-r-c.com From a quick test, at least half of connections get immediately

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Jay Hennigan via mailop
On 7/10/20 11:06, Job Cacka via mailop wrote: "Senders will tend to back off, and retry at increasingly long intervals, until they get a successful connection." Thanks for the test Adam. I do agree with your Analysis. The interesting thing is I am not seeing this refusal at my end logged. Perha

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Job Cacka via mailop
"Senders will tend to back off, and retry at increasingly long intervals, until they get a successful connection." Thanks for the test Adam. I do agree with your Analysis. The interesting thing is I am not seeing this refusal at my end logged. Perhaps it never made it to the maillog and that is ho

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Adam D. Barratt via mailop
On Fri, 2020-07-10 at 09:22 -0700, Job Cacka via mailop wrote: > slowmailtest...@ccbox.com > slowmailtest...@ccbox.com > > slowmailtest...@p-r-c.com > slowmailtest...@p-r-c.com From a quick test, at least half of connections get immediately rejected, which probably isn't helping: adam@kotick:$

Re: [mailop] Intermittent slow email delivery

2020-07-10 Thread Job Cacka via mailop
Hmmm, for some reason I need to "Reply All" in Gmail to reply to the list. Try two. "You have no logs, and provide little to no detail." Correct, and if it wasn’t a problem I wouldn’t even see the issue. I only have a few message headers to go off of because the sender is experiencing the “temp

Re: [mailop] Intermittent slow email delivery

2020-07-09 Thread Ángel via mailop
On 2020-07-09 at 12:46 -0700, Job Cacka wrote: > If you work with one of these relays and can shed light on the delay I > would love to know how to get it fixed. You have no logs, and provide little to no detail. You tried to contact with those organizations, but you were fruitless. It's almost i

[mailop] Intermittent slow email delivery

2020-07-09 Thread Job Cacka via mailop
For the last several weeks I have been tracking slow email from several sources. When it is easiest to see is when an outside source will send an email to two or more of our employees at the same time. One email copy to one person will show up right away and the other might be several hours later.

[mailop] Intermittent slow email delivery

2020-07-01 Thread Job Cacka via mailop
For the last several weeks I have been tracking slow email from several sources. When it is easiest to see is when an outside source will send an email to two or more of our employees at the same time. One email copy to one person will show up right away and the other might be several hours later.