Update: Some offers mentioned below are no longer available. View the current offers here.If you’ve been looking to give your Delta SkyMiles account a boost but have been held back by Amex’s once-per-lifetime rule, you may be in luck: Amex has been sending out targeted offers with no lifetime language. That means if you’ve previously received a welcome bonus for a card like the Delta SkyMiles® Gold American Express Card, you won’t be barred from getting it again – assuming you were targeted for one of these offers.For more TPG news delivered each morning to your inbox, sign up for our daily newsletter.How to find out if you were targetedThe Delta Amex card offers with no lifetime restrictions were sent out via email. So check your inbox (and spam) for any offers that may have come from Delta or Amex. Be sure to scroll down to the terms and conditions and read carefully. If you don’t see it in the targeted email, click through to the offer page.How to get targeted for Amex Delta cards with no lifetime restrictionThere’s no magic formula for getting targeted for an Amex Delta card with no lifetime restriction. What you do need is to sign up to receive email offers – ideally from both Amex and Delta. While the last thing any of us need is more ads, it can definitely pay off.I actually have a separate email account tied to all of my bank and rewards accounts. That way, the incessant ads and notifications don’t interfere with more important communication. I suggest you do the same if you want to get targeted offers like this one without having your primary inbox overrun with ads.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Which cards qualify for the targeted no-lifetime restriction?According to Miles to Memories, the no-lifetime language applies to targeted offers for the consumer cobranded Delta cards. The welcome bonus on these targeted offers is also higher than the current public offers. All three cards offer 50,000 bonus miles after spending $2,000 in three months. Offer subject to change at anytime.If you weren’t targeted for these offers but still want to apply for one of these cards, here’s a rundown of each current publicly-available offer. Please note, these offers do include the lifetime restriction, so you will not qualify for a welcome bonus if you’ve received one in the past:Delta SkyMiles® Gold American Express Card – Earn 40,000 bonus miles after spending $1,000 in purchases on and up to $50 back in statement credits for eligible purchases at U.S. restaurants within your first 3 months of account opening. Terms apply.Delta SkyMiles® Platinum American Express Card – Earn 50,000 bonus miles, plus 5,000 Medallion® Qualification Miles after you spend $2,000 in purchases and up to $100 back in statement credits for eligible purchases at U.S. restaurants within the first three months of account opening. Terms Apply.Delta SkyMiles® Reserve American Express Card – Earn 50,000 bonus miles, plus 10,000 Medallion® Qualification Miles after you spend $3,000 in purchases and up to $100 back in statement credits for eligible purchases at U.S. restaurants within the first three months of account opening. Terms Apply.Bottom lineIf you’re targeted for one of these offers, it might be worth it to apply for the card – especially if you’ve previously received a welcome bonus for it. Normally, you wouldn’t qualify for a second bonus and 50,000 SkyMiles is a pretty good offer, so I’d personally take it. If you have not been targeted and are considering getting a SkyMiles card, it’s worth mentioning that the current offers are not the highest we’ve seen before.So if you’re able to wait, I’d recommend holding out for a higher welcome bonus since you’ll most likely qualify for it just once.