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The following address(es) failed: g99w1472@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99w1472@campus.ru.ac.za g99w1018@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99w1018@campus.ru.ac.za g99w0250@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99w0250@campus.ru.ac.za g99v0947@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99v0947@campus.ru.ac.za g99t1590@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99t1590@campus.ru.ac.za g99s4127@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99s4127@campus.ru.ac.za g99s4050@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99s4050@campus.ru.ac.za g99s0074@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99s0074@campus.ru.ac.za g99r1462@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99r1462@campus.ru.ac.za g99r1428@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99r1428@campus.ru.ac.za g99r0990@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99r0990@campus.ru.ac.za g99p0878@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99p0878@campus.ru.ac.za g99p0417@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99p0417@campus.ru.ac.za g99o3986@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99o3986@campus.ru.ac.za g99o1940@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99o1940@campus.ru.ac.za g99m4374@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99m4374@campus.ru.ac.za g99m3898@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99m3898@campus.ru.ac.za g99m2895@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99m2895@campus.ru.ac.za g99m2160@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99m2160@campus.ru.ac.za g99m2048@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99m2048@campus.ru.ac.za g99m1000@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99m1000@campus.ru.ac.za g99m0689@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99m0689@campus.ru.ac.za g99l0621@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99l0621@campus.ru.ac.za g99j1385@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99j1385@campus.ru.ac.za g99h0136@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99h0136@campus.ru.ac.za g99g1623@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99g1623@campus.ru.ac.za g99d1582@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99d1582@campus.ru.ac.za g99d1267@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99d1267@campus.ru.ac.za g99d0843@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99d0843@campus.ru.ac.za g99d0650@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99d0650@campus.ru.ac.za g99c3713@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99c3713@campus.ru.ac.za g99c2603@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99c2603@campus.ru.ac.za g99c0576@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99c0576@campus.ru.ac.za g99c0297@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99c0297@campus.ru.ac.za g99a0328@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g99a0328@campus.ru.ac.za g98y4182@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98y4182@campus.ru.ac.za g98t5299@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98t5299@campus.ru.ac.za g98t5255@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98t5255@campus.ru.ac.za g98s3104@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98s3104@campus.ru.ac.za g98s1887@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98s1887@campus.ru.ac.za g98R6473@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98r6473@campus.ru.ac.za g98r6336@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98r6336@campus.ru.ac.za g98p1167@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98p1167@campus.ru.ac.za g98n6031@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98n6031@campus.ru.ac.za g98n3035@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98n3035@campus.ru.ac.za g98m6198@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98m6198@campus.ru.ac.za g98m4302@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98m4302@campus.ru.ac.za g98m3729@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98m3729@campus.ru.ac.za g98m3474@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98m3474@campus.ru.ac.za g98m3148@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98m3148@campus.ru.ac.za g98m1460@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98m1460@campus.ru.ac.za g98m1211@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98m1211@campus.ru.ac.za g98k3157@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98k3157@campus.ru.ac.za g98g1510@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g98g1510@campus.ru.ac.za g97m6120@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g97m6120@campus.ru.ac.za g97m3270@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g97m3270@campus.ru.ac.za g97m2025@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g97m2025@campus.ru.ac.za g97c3100@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g97c3100@campus.ru.ac.za g97b5433@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g97b5433@campus.ru.ac.za g9750158@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9750158@campus.ru.ac.za g9750084@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9750084@campus.ru.ac.za g9750050@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9750050@campus.ru.ac.za g9731782@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9731782@campus.ru.ac.za g9731373@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9731373@campus.ru.ac.za g9730900@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9730900@campus.ru.ac.za g9730485@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9730485@campus.ru.ac.za g9640745@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9640745@campus.ru.ac.za g9640149@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9640149@campus.ru.ac.za g9620825@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9620825@campus.ru.ac.za g9620063@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9620063@campus.ru.ac.za g9610195@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g9610195@campus.ru.ac.za g95y0109@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g95y0109@campus.ru.ac.za g95m5960@campus.ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: g95m5960@campus.ru.ac.za g97b6150@giraffe.ru.ac.za all hosts for 'giraffe.ru.ac.za' have been failing for a long time (and retry time not reached) g9631659@giraffe.ru.ac.za all hosts for 'giraffe.ru.ac.za' have been failing for a long time (and retry time not reached) g9610515@giraffe.ru.ac.za all hosts for 'giraffe.ru.ac.za' have been failing for a long time (and retry time not reached) g95w5826@giraffe.ru.ac.za all hosts for 'giraffe.ru.ac.za' have been failing for a long time (and retry time not reached) g95m5296@giraffe.ru.ac.za all hosts for 'giraffe.ru.ac.za' have been failing for a long time (and retry time not reached) g95l5227@giraffe.ru.ac.za all hosts for 'giraffe.ru.ac.za' have been failing for a long time (and retry time not reached) g95l5159@giraffe.ru.ac.za all hosts for 'giraffe.ru.ac.za' have been failing for a long time (and retry time not reached) g9620603@warthog.ru.ac.za all hosts for 'warthog.ru.ac.za' have been failing for a long time (and retry time not reached) g9620309@warthog.ru.ac.za all hosts for 'warthog.ru.ac.za' have been failing for a long time (and retry time not reached) g95s0988@warthog.ru.ac.za all hosts for 'warthog.ru.ac.za' have been failing for a long time (and retry time not reached) g95m5069@warthog.ru.ac.za all hosts for 'warthog.ru.ac.za' have been failing for a long time (and retry time not reached) g95i0563@warthog.ru.ac.za all hosts for 'warthog.ru.ac.za' have been failing for a long time (and retry time not reached)