On 27/01/16 04:35, voy...@sbt.net.au wrote:
I have a domain with about 50 mailboxes, server is located here in AUS but most of the users are on a LAN is SEAsia location. They were using POP (with Thunderbird), I suggested then can use IMAP instead, so they did. now they are asking; "Looks like Imap is adding a lot to our internet bandwidth" I guess they have some bandwidth limitation on their link I think I can understand that IMAP would increase bandwidth requirement, didn't expect it to cause 'problems' is there any optimization or changes I can make to reduce that ? the b/w limitation are at the client LAN link any other suggestions ?
When you change from POP3 to IMAP then user agents will redownload all messages once. I can't see any other reason for any significant bandwith increment other than that. Are you sure there really is more bandwith used once the mails have been redownloaded?
Sami
