Blackpool picked up another point in their quest for Sky Bet League One survival after coming from behind to draw 1-1 with Southend.The Seasiders were denied a first-minute goal by the woodwork as Viv Solomon-Otabor's pull-back found Sean Longstaff who rattled the crossbar from 12 yards.And the upright worked in the Shrimpers' favour again 10 minutes later. Anthony Wordsworth's brilliant free-kick came back off a post and fell kindly for Marc-Antoine Fortune, who bundled in from close range.But Blackpool hit back in first-half stoppage-time. Danny Philliskirk's strike was cleared off the line before Clark Robertson fired in the rebound from 12 yards.Southend goalkeeper Mark Oxley produced a superb double save to deny Longstaff and then Kyle Vassell three minutes after the break.Blackpool's Colin Daniel almost put his side in front after 75 minutes as he surged forward from left-back but fired just wide of the far post.It was Southend, though, who came closest to a winner after 83 minutes as Jason Demetriou was sent clean through but struck the near post.