you are well.2.Have
not heard from you for a long time, hope everthing is going well with you.3.How
have you been recently?4.How
are you doing recently?5.It
was good to hear from you. I am very well, hope you are the same.6.It
is my great honor writing to you.视情况而定，如果是刚刚见过面，礼貌性的联系或总结，邮件可以从刚刚结束的聚会谈起：1、It was such a good time we had at…2、It was my pleasure to meet you at …3、Thank you for your hospitality. We had our best visit at …4、We have arrived safely. Thank you for looking after us for the last two weeks.