求鉴定这是不是钓鱼邮件？

上个月我到了一个西班牙陌生客户A给我发的邮件邮件，内容比较长，意思是说他的客户B对我们的产品感兴趣，我把产品资料和价格法过去后，A给我回了封邮件，说客户B同意对我们进行采购，后来A的客户B发来了合同，他说要我们律师使这份合同合法化(是他给我们推荐的），我们这个律师后，律师说要我们向他付律师付费后才为我们公正，邮件内容如下： Hello Sir, Thank you for contacting us and we received your signed contract agreement. Our Attorney can represent your company??for the legalization of the Contract Agreement in the Spanish Notary Public. And ensure that the Advance payment is being transferred to your nominated account as stipulated in the contract agreement. This process can be done within 72 hours and the Legalize document shall be dispatched through Courier services to your mailing address. For rendering this service to your Firm, our legal fee is 950 Euro. Document needed from your end, Scan and send to our email for urgency A copy of your business license or company registration Your company full mailing address and telephone/mobile numbers. Finally, attached herewith are my Identification card and our Attorney License. Best Regards, 我们没同意，说等我们到付款就把律师费转给他（关键是我们还未到一分钱）他最后一封邮件如下： Hellor Sir, I ge you an official invoice for the payment, which is general accepted. Sorry, I cannot proceed further without the payment of??legal fee. Best Regards, 我给客户A和客户B都发了封邮件： He a nice day! We he contacted the PROYHCORP and the Approved Law Firm . They need to charge additional fees. Before we work with the other guests never these charge. If the need to pay the fees, we he to receive the goods payment after only to pay for them. Feel free to contact us for clarifications, thank. 今天客户A回了封邮件过来： Dear Sir, Yes we can understand your mail. We will only telling you based on our experienced for over 15years in linking manufacturers and exporters to buyer. As we understand some bulk buyers may be afraid of seller not to part away with his money if remit to sellers bank account. In this case legalization comes, in which seller he to look for arepres entative (Attorney) to sign contract on his behalf and the full payment is done to the seller. And if the seller fail to supply the Attorney will be held responsible. Please understand the situation it's because of fraud in which the buyer may be he experienced in the past. We only advise that you cooperate with the buyer and the lawyer in other for them to release payment to your bank account and from there we can get our commission. Looking forward for you to confirm you he receive payment. Best Regards 请大家仔细帮我看看这是不是团伙骗子，有没有遇到类似情况的。求指导接下来该怎么？