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cwachs

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Not sure if this is a new problem or not. I've just changed over from Entourage to OS X Mail on 10.6.1. I am running Kerio 6.7.2 on OS X Server 10.4

What I've noticed is when sending mail with Apple's Mail, it takes 10 - 30 seconds for each piece of mail to be sent (with no attachments). In Entourage, this is nearly instant. I have a couple other IMAP accounts configured in Mail (not on Kerio) and those send instantly.

My SMTP settings in Mail require "password" authorization to send and I also have POP before SMTP activated on the server. This send delay happens with SSL both on and off.

Anyone else notice a "lag" when sending mail from Apple Mail and has this always been there or is this new?
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My IT Indy

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I've not seen this happen at all. Can you try manually setting the smtp port in mail and see if that helps?

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My IT Indy
Kerio Certified Reseller and Hosted Provider
http://www.myitindy.com
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franken

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- is "spam repellent" activ on the server?
- do you use the same server ip and port?

I'm using Apple Mail.app without this bahaviour an I'm happy with the combination.

[Updated on: Tue, 20 October 2009 08:34]

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cwachs

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As for ports, we see this on port 25, 8025, 465 and 587 - same behavior. All inbound mail to the server comes through a SPAM gateway device and hits the server on port 8025.

I do not have any SPAM repellant turned on with Kerio - that and virus filtering is all handled off the server on a specialized gateway.

We only have one IP for the server so clients and inbound mail from the gateway all use that one IP. The gateway device and the Kerio server are connected to a 1000 BT switch so there should be no bottleneck there. Kerio server is in a co-location facility with a 30 Mbps dedicated connection.

We only see this with Apple's Mail. Entourage, Thunderbird and Outlook are fine.

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Server installation:
Kerio Connect 7.1
OS X Server 10.5.8
Apple G4 X Serve
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cwachs

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Found the problem and it looks like I mis-spoke earlier. In Spam Repellent, we had delay SMTP greeting set to 25 seconds. Turning this off solved the problem. However, it raises 2 questions:

1) Why would this setting only affect Mail and not other client applications?

2) We are also using POP3 before SMTP. Many of the complaining users were POP3 users. Why would Kerio not stop delaying the SMTP greeting for POP3 IP's that were currently authorized?

Lastly, why is IMAP treated differently in this regard? Why no IMAP before SMTP setting to authorize IMAP IP's to send mail?
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giobbi

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Curious about this too.

We are also IMAP only, would be great for SMTP auth like the one for POP3.

I also notice that the smtp-delay is active when sending mail internally even thou i have an IP-address whitelist on plus smtp-auth on. All are Apple Mail users.

Strange eh?
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