In azure you cannot change that settings to acomodate your custom MTU. AFAIK you must use the dafault MTU 1500.
El 22/09/16 a les 12:23, Joseph Thibeault ha escrit: > I did some research on that. This server is on Microsoft azure and > their virtual networks do have a firewall built in which inspects > inbound packets. There isn't a firewall on the VM itself. What type of > setting should I be looking for in the firewall? > On Thu, Sep 22, 2016 at 2:08 AM Harald Paulsen <har...@paulsen.no > <mailto:har...@paulsen.no>> wrote: > > is there an old cisco pix firewall, or any other firewall with > packet inspection involved? > > > Harald > > Sent from my iPad > > > On 22. sep. 2016, at 06.24, Joseph Thibeault <j...@dashride.com > <mailto:j...@dashride.com>> wrote: > > > > We use postfix as a mail queue / sending service in one of our > applications. This application generates emails with PDF > attachments. Some of the emails with PDFs get sent fine, but > others seem to cause a "timeout after DATA" error. > > > > Through reading online, I've seen answers such as adjusting the > MTU size on the network interface, etc. None of these solutions > have worked. Has anyone had this happen, do you have any > suggestions to fix it? > > > > Thank you. >
