On Mon, 2010-08-02 at 11:11 +0100, Sujit Acharyya-Choudhury wrote: > We are experiencing trouble in sending e-mails to certain sites from our Exim > Gateway, which is 4.60. We don't know whether it is exim or our firewall > which is causing the problem. Ordinary e-mail goes through, but e-mail with > attachments fail: > > Below is an example: > > Site Shakespearesglobe.com > Our site: westminster.ac.uk (gateways, isls-mx10, isls-mx20, isls-mx30) > > Shakespearesglobe.com says: > "MTU size is currently set at 1404. Our communication line is a 10MB Managed > Internet Line. We don't experience any problems communicating with any other > organisations with our current MTU size. How have you resolved this problem > with other organisations?" > > We at isls-mx30, compiled exim with 4000 MTU, but that failed to solve the > problem. > > Any body has seen the problem like this before?
It looks like you're firewalling ICMP. Don't do that; it breaks things. -- dwmw2 -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
