[Dovecot] Mail.app + dovecot 1.2 + POP3
Hello all,
I have an user with MacOS X 10.5 Mail.app 3.5, which is connecting using POP3 to a dovecot 1.2 server. He has a 512 kbps link, which he saturates downloading large files. While the bandwidth is saturated, Mail.app shows the POP3 account as "offline" (I haven't used that client, but it seems that it doesn't retry the connection if it fails at some moment).
He argues that he has some other POP3 and IMAP4 accounts configured in the same app, and those accounts never go "offline" even if the bw usage is at 100% (those other accounts are not on my servers and I don't know which sw are they using). My question is, could dovecot be somehow involved in this "offline" issue? (something like the past IDLE issues with Outlook 2007?)
Thanks in advanced.
On Wed, 2009-12-09 at 16:10 -0600, Rodolfo Gonzalez Gonzalez wrote:
He argues that he has some other POP3 and IMAP4 accounts configured in the same app, and those accounts never go "offline" even if the bw usage is at 100% (those other accounts are not on my servers and I don't know which sw are they using). My question is, could dovecot be somehow involved in this "offline" issue? (something like the past IDLE issues with Outlook 2007?)
So the problem is higher latency I suppose? Dovecot's logins fail after idling for 3 minutes. I don't think the latencies should be that high no matter what you do with your bandwidth. Of course it's possible that there's something else than Dovecot that kills high-latency connections too soon (firewall, whatever).
Timo Sirainen escribió:
On Wed, 2009-12-09 at 16:10 -0600, Rodolfo Gonzalez Gonzalez wrote:
He argues that he has some other POP3 and IMAP4 accounts configured in the same app, and those accounts never go "offline" even if the bw usage is at 100% (those other accounts are not on my servers and I don't know which sw are they using). My question is, could dovecot be somehow involved in this "offline" issue? (something like the past IDLE issues with Outlook 2007?)
So the problem is higher latency I suppose? Dovecot's logins fail after idling for 3 minutes. I don't think the latencies should be that high no matter what you do with your bandwidth. Of course it's possible that there's something else than Dovecot that kills high-latency connections too soon (firewall, whatever).
Thanks for the answer Timo. No, his latency is not so high, and moreover, I guess something is logged when this situation happens, right? Nothing appears in the logs...
Thanks.
On Wed, 2009-12-09 at 17:00 -0600, Rodolfo Gonzalez Gonzalez wrote:
Timo Sirainen escribió:
On Wed, 2009-12-09 at 16:10 -0600, Rodolfo Gonzalez Gonzalez wrote:
He argues that he has some other POP3 and IMAP4 accounts configured in the same app, and those accounts never go "offline" even if the bw usage is at 100% (those other accounts are not on my servers and I don't know which sw are they using). My question is, could dovecot be somehow involved in this "offline" issue? (something like the past IDLE issues with Outlook 2007?)
So the problem is higher latency I suppose? Dovecot's logins fail after idling for 3 minutes. I don't think the latencies should be that high no matter what you do with your bandwidth. Of course it's possible that there's something else than Dovecot that kills high-latency connections too soon (firewall, whatever).
Thanks for the answer Timo. No, his latency is not so high, and moreover, I guess something is logged when this situation happens, right? Nothing appears in the logs...
If Dovecot doesn't log even a login attempt, then yeah, I don't see how this could have anything to do with Dovecot or probably even your side of the server/network.
participants (2)
-
Rodolfo Gonzalez Gonzalez
-
Timo Sirainen