Some months back Tim Geyssens was kind enough to send me the source for his MailEngine addition to Umbraco before he released it on his blog. I made some customisations to the source to allow users to select templates and changed the filtering options slightly but other than that it worked jut fine for what I needed.

There was however one problem that became apparent when this was used in production. Sometimes, and apparently randomly the sending of mail would freeze when going to more than say 150 recipients. After a long time trying to track down the reason I stumbled across a post linking to the ‘SmtpClient does not gracefully close the underlying TCP/IP connection‘ issue on the Microsoft Connect website. I guessed it couldn’t do any harm to set the MaxTimeout property of the SmtpClient to 1 so I tried it and it seemed to work – so far so good however you should note the recent comment from someone with regards to using this method on IIS7.

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In a project I am currently working on there is a facility for Umbraco users to export Membership and Profile data. As part of the export the client also wanted to include the groups a member belongs to and here is how I achieved it, I hope it is of use to someone else.

Member m = new Member(mid);
// Loop through the member groups and add them to the field
foreach (MemberGroup mg in m.Groups.Values)
{
//- Do your stuff in here, e.g.
csv.Append(mg.Text); // Appends the Member group name
}

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