Exchange 2007 Server on Slow connection with cloud mail relay
Hi,
I have a server set up on a slow internet connection with Exchange 2007. This server is set up as the first MX record, the second MX record is in the cloud. The cloud server queues the email and relays to the first server.
What I'm finding is that the majority of emails get delivered to the onsite Exchange server however large emails get delivered to the cloud server and then get queued to be relayed but never actually get delivered to the on-site server. Errors suggest this a timeout issue ( probably the same reason why they aren't delivered in the first place) but how can I resolve this? I've extended the 'connectiontimeout' parameter for the SMTP connector through Exchange Management Console from 10minutes to 30 but this hasn't made any difference so I'm not sure thats the correct parameter.
Could anybody help on this please?
Thanks
I have a server set up on a slow internet connection with Exchange 2007. This server is set up as the first MX record, the second MX record is in the cloud. The cloud server queues the email and relays to the first server.
What I'm finding is that the majority of emails get delivered to the onsite Exchange server however large emails get delivered to the cloud server and then get queued to be relayed but never actually get delivered to the on-site server. Errors suggest this a timeout issue ( probably the same reason why they aren't delivered in the first place) but how can I resolve this? I've extended the 'connectiontimeout' parameter for the SMTP connector through Exchange Management Console from 10minutes to 30 but this hasn't made any difference so I'm not sure thats the correct parameter.
Could anybody help on this please?
Thanks
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ASKER
I've asked the provider of the Backup MX and this was their response:
'There is no need to extend any time outs our side. Our standard response time out is already > 5 minutes, the RFC standard. We also have no time limit for the transmission of an email. it can happily take hours. There is a 5 minute time-out waiting for a response from your side.'
'There is no need to extend any time outs our side. Our standard response time out is already > 5 minutes, the RFC standard. We also have no time limit for the transmission of an email. it can happily take hours. There is a 5 minute time-out waiting for a response from your side.'
ASKER
I'm afraid it happens on several sending servers and I can't ask them all to extend their timeout limit (hence why lots of emails end up in the backup MX). The connection is that slow, the client only has a 2MB connection which is used for an office of around 40 people. The backup MX has a queue of 10 emails of 512MB upwards that it can't deliver to the main server which it retries every 15 minutes. Is there nothing I can change on the on-site Exchange server?
Thanks