base64编码问题

ManFree

我用php发送有附件的邮件，但是接收时，发现所有的附件都是base64码。
象：

1. PGh0bWw+DQo8aGVhZD4NCjxUSVRMRT6xs76wyrHW0zwvVElUTEU+IA0KPHNjcmlwdCBsYW5ndWFn
   
2. ZT1qYXZhU2NyaXB0Pg0KPCEtLS8vIA0KZnVuY3Rpb24gY2xvY2tvbigpIHsNCnRoaXN0aW1lPSBu
   
3. ZXcgRGF0ZSgpDQp2YXIgaG91cnM9dGhpc3RpbWUuZ2V0SG91cnMoKQ0KdmFyIG1pbnV0ZXM9dGhp
   
4. c3RpbWUuZ2V0TWludXRlcygpDQp2YXIgc2Vjb25kcz10aGlzdGltZS5nZXRTZWNvbmRzKCkNCmlm
   
5. IChldmFsKGhvdXJzKSA8MTApIHtob3Vycz0iMCIraG91cnN9DQppZiAoZXZhbChtaW51dGVzKSA8
   
6. IDEwKSB7bWludXRlcz0iMCIrbWludXRlc30NCmlmIChzZWNvbmRzIDwgMTApIHtzZWNvbmRzPSIw
   
7. IitzZWNvbmRzfQ0KdGhpc3RpbWUgPSBob3VycysiOiIrbWludXRlcysiOiIrc2Vjb25kcw0KaWYo
   
8. ZG9jdW1lbnQuYWxsKSB7DQpiZ2Nsb2Nrbm9zaGFkZS5pbm5lckhUTUw9dGhpc3RpbWUNCmJnY2xv
   
9. Y2tzaGFkZS5pbm5lckhUTUw9dGhpc3RpbWUNCn0NCmlmKGRvY3VtZW50LmxheWVycykgew0KZG9j
   
10. dW1lbnQuYmdjbG9ja3NoYWRlLmRvY3VtZW50LndyaXRlKCc8ZGl2IGlkPSJiZ2Nsb2Nrc2hhZGUi
    
11. IHN0eWxlPSJwb3NpdGlvbjphYnNvbHV0ZTt2aXNpYmlsaXR5OnZpc2libGU7Zm9udC1mYW1pbHk6
    
12. VmVyZGFuYTtjb2xvcjpGRkFBQUFBO2ZvbnQtc2l6ZToxMjBweDt0b3A6MTBweDtsZWZ0OjE1MnB4
    
13. Ij4nK3RoaXN0aW1lKyc8L2Rpdj4nKQ0KZG9jdW1lbnQuYmdjbG9ja25vc2hhZGUuZG9jdW1lbnQu
    
14. d3JpdGUoJzxkaXYgaWQ9ImJnY2xvY2tub3NoYWRlIiBzdHlsZT0icG9zaXRpb246YWJzb2x1dGU7
    
15. dmlzaWJpbGl0eTp2aXNpYmxlO2ZvbnQtZmFtaWx5OlZlcmRhbmE7Y29sb3I6REREREREO2ZvbnQt
    
16. c2l6ZToxMjBweDt0b3A6MTBweDtsZWZ0OjE1MHB4Ij4nK3RoaXN0aW1lKyc8L2Rpdj4nKQ0KZG9j
    
17. dW1lbnQuY2xvc2UoKQ0KfQ0KdmFyIHRpbWVyPXNldFRpbWVvdXQoImNsb2Nrb24oKSIsMjAwKQ0K
    
18. fQ0KLy8tLT4NCjwvc2NyaXB0Pg0KPGxpbmsgcmVsPSJzdHlsZXNoZWV0IiBocmVmPSIuLi9zdHls
    
19. ZS5jc3MiPjwvaGVhZD4NCjxib2R5IG9uTG9hZD0iY2xvY2tvbigpIj4NCjxkaXYgaWQ9ImJnY2xv
    
20. Y2tzaGFkZSIgc3R5bGU9InBvc2l0aW9uOmFic29sdXRlO3Zpc2liaWxpdHk6dmlzaWJsZTtmb250
    
21. LWZhbWlseTpBcmlhbDtjb2xvcjpGRjg4ODg7Zm9udC1zaXplOjEyMHB4O3RvcDoxMDJweDtsZWZ0
    
22. OjE1MnB4Ij48L2Rpdj4NCjxkaXYgaWQ9ImJnY2xvY2tub3NoYWRlIiBzdHlsZT0icG9zaXRpb246
    
23. YWJzb2x1dGU7dmlzaWJpbGl0eTp2aXNpYmxlO2ZvbnQtZmFtaWx5OkFyaWFsO2NvbG9yOkRERERE
    
24. RDtmb250LXNpemU6MTIwcHg7dG9wOjEwMHB4O2xlZnQ6MTUwcHgiPjwvZGl2Pg0KPGRpdiBpZD0i
    
25. bWFpbmJvZHkiIHN0eWxlPSJwb3NpdGlvbjphYnNvbHV0ZTsgdmlzaWJpbGl0eTp2aXNpYmxlIj4N
    
26. CjwvZGl2Pg0KPC9ib2R5Pg0KPC9odG1sPg0K

复制代码

怎么回事？

1. Content-type: $mimeType;  name=$filename
   
2. Content-disposition: attachment; filename=$filename
   
3. Content-transfer-encoding: base64

复制代码

这是我的附件头语句。

请各位帮帮忙

SATAND

自己找个 php smtp 类看看
你的cmark没有用合理的字串分段，应该是把附件当内容算了