Is it ok for a Catholic to Marry someone from the SSPX?

Hi, one of my close relatives is going to marry somone who is from the SSPX. Is this ok? is it ok if their wedding is celebrated in a SSPX parish? is it ok for me to attend if it is? is it ok to be in the wedding party?

Thank You!

[FONT=Arial]The following links should assist you in better understanding the Catholic Church’s teaching on attending/participating in SSPX weddings. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.[/FONT]
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[FONT=Arial]Recommended Reading:[/FONT]

*]What is the status of a marriage witnessed by an SSPX priest?
*]**What are the rules for attending weddings? **

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